Table HM-64 - Highway Statistics 2017 - Policy | Federal Highway Administration

Highway Statistics 2017

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Functional System Length - 2017

August 23, 2018
Table HM-64
1 of 4

MILES BY MEASURED PAVEMENT ROUGHNESS - RURAL

STATE	INTERNATIONAL ROUGHNESS INDEX (IRI) (1)
	INTERSTATE
	NOT REPORTED (2)	< 60	60-94	95-119	120-144	145-170	171-194	195-220	> 220	TOTAL REPORTED
Alabama	9	354	139	35	18	12	2	1	1	562
Alaska	1	204	341	157	114	78	45	26	35	1,001
Arizona	16	537	221	71	35	19	8	5	3	900
Arkansas	1	218	147	37	16	10	4	2	3	438
California	3	437	392	155	92	49	24	13	21	1,183
Colorado	-	134	270	127	49	31	22	10	4	648
Connecticut	-	17	7	3	1	0	0	0	0	29
Delaware	-	-	-	-	-	-	-	-	-	-
Dist. of Columbia	-	-	-	-	-	-	-	-	-	-
Florida	35	537	127	10	5	3	0	0	0	682
Georgia	-	216	209	65	26	12	5	2	2	537
Hawaii	-	-	-	-	-	-	-	-	-	-
Idaho	-	270	180	40	18	7	3	1	1	520
Illinois	-	716	390	76	29	18	8	4	3	1,243
Indiana	42	450	171	42	26	17	9	6	7	728
Iowa	20	246	219	67	33	15	6	3	2	591
Kansas	-	397	173	45	15	6	2	1	0	639
Kentucky	23	419	121	28	14	10	3	1	1	598
Louisiana	13	183	132	87	67	32	12	4	2	520
Maine	0	151	79	28	14	4	2	0	0	279
Maryland	-	63	59	13	4	1	1	0	1	142
Massachusetts	-	36	22	3	1	0	0	0	1	63
Michigan	6	219	224	57	29	18	7	4	3	561
Minnesota	-	227	267	41	28	12	6	4	2	588
Mississippi	-	375	118	32	22	13	6	2	1	569
Missouri	-	545	230	38	15	8	4	1	0	842
Montana	19	556	391	69	29	12	7	5	7	1,075
Nebraska	0	240	125	29	12	5	2	1	1	414
Nevada	-	395	32	7	4	4	4	1	0	447
New Hampshire	-	116	22	3	1	-	-	-	-	142
New Jersey	-	21	21	1	1	1	0	0	-	45
New Mexico	2	532	214	58	26	9	3	2	2	845
New York	2	306	323	86	42	19	10	7	8	801
North Carolina	0	325	151	33	21	13	5	2	1	551
North Dakota	-	282	185	31	8	2	1	0	0	510
Ohio	-	350	197	51	19	12	6	3	3	643
Oklahoma	0	307	245	46	23	12	7	4	2	646
Oregon	-	244	177	52	15	4	2	1	1	495
Pennsylvania	-	451	435	104	52	22	11	6	6	1,086
Rhode Island	-	15	3	0	-	-	-	-	-	18
South Carolina	-	181	239	61	31	20	8	4	3	546
South Dakota	-	221	294	47	17	7	4	1	0	591
Tennessee	0	528	85	16	9	4	1	1	0	644
Texas	11	946	793	160	56	21	8	3	2	1,990
Utah	0	329	277	59	12	4	2	1	1	684
Vermont	1	192	52	7	3	1	1	0	-	255
Virginia	-	252	271	45	17	9	2	1	0	598
Washington	-	170	145	41	28	18	10	8	9	429
West Virginia	1	143	135	21	10	5	3	1	1	319
Wisconsin	-	221	140	70	40	24	7	5	5	512
Wyoming	-	483	215	57	30	14	4	3	2	807
U.S. Total	205	14,755	9,406	2,415	1,177	617	288	153	145	28,957
Puerto Rico	6	1	7	7	2	3	2	3	13	38
Grand Total	211	14,756	9,413	2,422	1,179	620	290	156	159	28,995

August 23, 2018
Table HM-64
2 of 4

MILES BY MEASURED PAVEMENT ROUGHNESS - RURAL

STATE	INTERNATIONAL ROUGHNESS INDEX (IRI) (1)
	OTHER FREEWAYS & EXPRESSWAYS										OTHER PRINCIPAL ARTERIAL										MINOR ARTERIAL (3)
	NOT REPORTED (2)	< 60	60-94	95-119	120-144	145-170	171-194	195-220	> 220	TOTAL REPORTED	NOT REPORTED (2)	< 60	60-94	95-119	120-144	145-170	171-194	195-220	> 220	TOTAL REPORTED	NOT REPORTED (2)	< 60	60-94	95-119	120-144	145-170	171-194	195-220	> 220	TOTAL REPORTED
Alabama	-	-	-	-	-	-	-	-	-	-	15	848	873	165	63	30	16	9	10	2,014	27	890	2,130	456	210	95	35	8	38	3,862
Alaska	-	-	-	-	-	-	-	-	-	-	277	64	117	51	48	51	40	34	117	522	84	37	50	31	44	49	37	30	47	325
Arizona	-	17	0	0	0	-	-	-	-	18	22	428	415	162	91	48	22	14	8	1,187	10	225	448	224	150	85	43	22	14	1,210
Arkansas	-	0	32	17	11	7	4	1	1	72	2	224	802	382	216	122	63	33	33	1,875	22	200	1,305	650	367	281	103	75	80	3,061
California	4	108	154	52	23	15	6	4	4	366	77	728	1,365	501	261	142	73	45	67	3,182	24	342	1,480	1,139	1,118	871	527	329	317	6,122
Colorado	-	5	8	7	5	2	0	0	-	28	-	536	1,075	485	235	125	58	29	25	2,569	289	80	913	701	566	381	195	159	189	3,183
Connecticut	-	16	12	3	2	1	1	0	0	36	-	7	50	32	17	9	4	2	1	122	0	0	43	58	63	25	15	7	5	218
Delaware	1	1	9	4	2	0	0	0	-	17	-	30	56	9	2	2	0	-	0	99	0	25	45	12	4	1	0	1	0	89
Dist. of Columbia	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Florida	0	73	91	8	2	1	1	-	0	176	69	1,042	1,161	234	74	26	8	3	3	2,551	9	615	1,182	248	78	41	6	12	7	2,188
Georgia	-	-	-	-	-	-	-	-	-	-	14	660	1,200	329	122	57	20	9	10	2,408	41	916	2,172	831	350	179	47	26	42	4,563
Hawaii	-	-	-	-	-	-	-	-	-	-	-	1	22	15	10	13	7	4	6	78	1	41	57	39	43	33	18	10	14	255
Idaho	-	54	48	6	2	1	0	0	-	112	44	414	777	240	101	44	22	10	10	1,619	7	225	496	156	110	60	16	7	8	1,079
Illinois	-	1	15	17	7	7	1	0	0	48	-	339	951	468	283	189	57	40	28	2,354	16	151	1,996	1,364	716	314	104	45	26	4,717
Indiana	4	65	37	18	13	4	2	1	0	141	54	508	541	191	99	55	27	15	14	1,451	13	574	861	289	155	113	47	30	25	2,096
Iowa	-	-	-	-	-	-	-	-	-	-	194	774	1,093	583	347	193	100	64	76	3,231	19	-	-	-	-	-	-	-	-	-
Kansas	-	170	185	34	10	3	1	0	0	404	8	1,569	776	147	61	35	16	8	6	2,619	36	1,353	2,170	390	182	67	31	20	18	4,230
Kentucky	19	291	137	22	10	5	4	1	1	472	43	497	466	117	49	22	8	5	7	1,171	21	215	1,027	546	247	113	44	28	30	2,249
Louisiana	1	1	7	4	6	3	2	1	0	24	34	124	417	186	99	61	37	19	24	966	20	141	745	383	266	164	91	52	61	1,903
Maine	-	-	-	-	-	-	-	-	-	-	2	189	305	112	54	38	23	17	36	774	5	164	333	150	98	63	38	29	58	933
Maryland	-	42	22	3	0	0	0	0	1	69	0	143	127	25	10	6	3	3	3	321	3	197	346	108	29	17	4	3	2	705
Massachusetts	-	5	5	1	0	-	-	0	0	11	-	15	42	23	11	6	2	2	4	105	5	37	106	66	46	20	18	9	8	311
Michigan	0	195	101	26	9	5	4	2	1	344	0	880	828	223	104	47	21	11	16	2,130	10	987	2,217	767	357	263	116	73	104	4,883
Minnesota	-	9	16	5	3	1	0	0	0	34	0	1,248	1,108	485	283	163	81	43	43	3,454	23	1,506	1,849	1,116	988	677	213	96	165	6,610
Mississippi	-	-	-	-	-	-	-	-	-	-	-	501	721	249	144	86	41	21	22	1,783	37	513	1,189	606	553	422	237	126	108	3,754
Missouri	-	534	450	93	31	11	4	2	1	1,125	0	681	815	227	89	35	18	8	7	1,879	28	135	1,340	1,171	663	359	189	78	47	3,983
Montana	-	-	-	-	-	-	-	-	-	-	8	658	1,329	414	178	84	38	25	39	2,765	8	443	1,336	509	255	150	54	36	41	2,824
Nebraska	5	64	135	61	32	17	10	5	3	327	8	1,019	751	232	136	85	43	25	40	2,331	24	1,695	1,226	430	315	200	93	82	89	4,130
Nevada	-	-	-	-	-	-	-	-	-	-	-	959	454	72	23	8	4	2	2	1,523	1	122	382	138	50	19	5	4	2	721
New Hampshire	-	9	0	-	-	-	-	-	-	9	0	146	116	30	12	6	4	3	5	323	4	162	192	56	38	33	25	24	93	625
New Jersey	-	10	17	5	2	1	0	-	0	35	-	32	42	24	21	17	11	5	7	160	3	17	93	60	48	38	12	4	7	279
New Mexico	-	-	-	-	-	-	-	-	-	-	1	651	736	249	141	78	39	19	23	1,936	9	186	432	404	395	298	192	134	249	2,289
New York	75	7	44	20	17	10	4	2	2	106	65	291	1,044	340	167	94	48	29	30	2,043	-	-	720	72	-	-	-	-	-	792
North Carolina	3	221	156	25	10	5	3	1	1	421	25	298	792	264	107	48	23	12	13	1,556	18	119	1,188	556	379	253	78	67	91	2,731
North Dakota	-	-	-	-	-	-	-	-	-	-	-	1,262	1,094	318	144	64	24	13	21	2,941	5	827	1,143	290	123	60	29	23	30	2,526
Ohio	0	131	124	41	20	9	2	2	1	330	5	504	664	189	76	40	20	10	11	1,513	11	653	1,304	368	173	87	25	10	31	2,650
Oklahoma	-	0	1	-	0	0	0	0	0	2	10	409	967	394	208	115	63	40	44	2,239	22	506	1,168	424	289	150	84	27	25	2,673
Oregon	-	-	-	-	-	-	-	-	-	-	4	582	1,328	421	181	76	34	20	11	2,652	13	66	954	719	275	141	43	26	-	2,224
Pennsylvania	-	132	131	32	20	13	8	4	3	344	-	327	724	246	130	73	36	23	35	1,593	15	302	1,528	1,232	622	366	187	136	214	4,587
Rhode Island	-	4	2	1	2	1	0	0	0	11	-	5	11	15	18	17	12	8	12	97	0	7	8	13	9	13	9	7	6	72
South Carolina	-	9	25	6	3	1	0	0	-	45	0	207	687	305	172	88	42	23	21	1,546	16	301	1,159	719	415	218	99	47	23	2,982
South Dakota	-	94	120	37	23	11	3	1	1	291	-	322	1,114	565	286	156	77	43	30	2,592	19	427	1,188	571	352	214	111	56	44	2,962
Tennessee	-	10	5	0	-	-	-	-	-	14	64	794	660	145	68	31	14	6	3	1,721	20	-	0	-	-	-	-	-	-	0
Texas	4	48	52	16	4	2	1	0	0	124	63	2,484	3,520	1,350	569	247	99	43	33	8,345	83	-	38	107	190	123	69	24	6	558
Utah	-	0	3	4	1	1	0	-	-	9	12	170	513	240	122	62	25	9	10	1,150	2	143	420	272	219	133	63	33	29	1,312
Vermont	-	-	1	1	-	-	-	-	-	2	1	110	126	37	21	15	6	5	8	329	5	143	334	113	65	35	17	13	13	734
Virginia	0	19	59	8	3	1	1	0	0	92	22	261	834	298	127	59	22	10	5	1,616	13	186	1,688	1,012	380	135	50	15	4	3,469
Washington	-	139	295	88	32	18	14	10	16	612	-	194	636	262	114	53	24	15	16	1,313	13	174	634	421	285	208	119	67	112	2,021
West Virginia	-	-	0	0	-	0	-	-	0	0	1	102	446	214	117	67	32	20	18	1,015	4	10	495	391	193	103	63	49	42	1,346
Wisconsin	-	48	48	57	27	14	6	2	1	203	0	759	887	515	325	163	88	59	80	2,876	13	1,248	1,136	696	557	320	293	171	310	4,732
Wyoming	-	-	-	-	-	-	-	-	-	-	6	692	842	268	106	40	15	8	7	1,977	3	328	551	196	89	32	13	11	8	1,227
U.S. Total	115	2,533	2,549	723	335	170	84	42	39	6,474	1,150	25,688	36,415	13,049	6,439	3,391	1,610	924	1,100	88,616	1,072	17,635	43,819	21,271	13,117	8,022	3,908	2,341	2,881	112,993
Puerto Rico	-	-	-	-	-	-	-	-	-	-	41	-	-	0	1	1	1	1	2	6	-	-	-	-	-	-	-	-	-	-
Grand Total	115	2,533	2,549	723	335	170	84	42	39	6,474	1,191	25,688	36,415	13,049	6,439	3,391	1,611	925	1,102	88,622	1,072	17,635	43,819	21,271	13,117	8,022	3,908	2,341	2,881	112,993

August 23, 2018
Table HM-64
3 of 4

MILES BY MEASURED PAVEMENT ROUGHNESS - URBAN

STATE	INTERNATIONAL ROUGHNESS INDEX (IRI) (1)
	INTERSTATE
	NOT REPORTED (2)	< 60	60-94	95-119	120-144	145-170	171-194	195-220	> 220	TOTAL REPORTED
Alabama	4	246	82	34	26	18	12	7	4	429
Alaska	1	14	40	13	7	2	1	0	1	78
Arizona	3	152	60	21	10	3	2	1	0	249
Arkansas	-	105	105	43	20	16	8	6	8	310
California	2	243	412	213	147	99	59	43	53	1,268
Colorado	-	57	123	54	38	16	8	5	3	304
Connecticut	-	154	102	32	16	7	3	2	1	317
Delaware	1	3	19	9	3	2	2	1	1	40
Dist. of Columbia	0	-	1	-	4	-	2	-	4	12
Florida	78	382	234	45	23	10	4	1	1	700
Georgia	-	334	236	72	33	18	8	5	4	710
Hawaii	-	1	13	11	10	9	6	3	3	55
Idaho	0	44	36	6	3	1	1	0	0	91
Illinois	-	335	395	93	53	32	16	9	7	942
Indiana	66	187	104	56	31	21	12	7	7	425
Iowa	6	57	66	21	10	6	4	3	2	170
Kansas	1	117	63	24	15	10	3	1	1	234
Kentucky	4	107	67	18	11	9	3	1	2	217
Louisiana	10	103	87	51	50	50	25	17	13	395
Maine	0	50	23	7	5	1	0	0	0	87
Maryland	0	141	120	27	15	11	6	5	12	338
Massachusetts	2	321	122	24	12	12	6	4	10	510
Michigan	3	173	269	86	58	41	23	17	15	682
Minnesota	0	86	140	47	21	16	7	4	4	325
Mississippi	-	146	48	22	15	11	5	3	3	253
Missouri	-	308	137	41	24	15	7	4	2	538
Montana	1	41	41	7	3	3	1	1	1	97
Nebraska	1	22	28	9	4	3	1	1	1	68
Nevada	-	75	39	17	13	8	2	1	1	155
New Hampshire	-	65	14	3	1	0	-	0	0	83
New Jersey	-	134	133	41	25	15	11	11	16	387
New Mexico	0	97	41	9	3	2	1	0	0	153
New York	9	225	374	127	65	44	33	23	40	931
North Carolina	0	304	252	80	42	20	12	6	4	721
North Dakota	-	22	26	7	4	1	1	0	0	61
Ohio	1	384	319	95	54	37	19	10	12	930
Oklahoma	3	89	109	34	19	14	8	5	6	283
Oregon	-	75	107	25	12	8	4	2	1	234
Pennsylvania	-	241	299	93	64	37	20	11	10	775
Rhode Island	0	19	24	5	2	1	1	0	0	52
South Carolina	-	85	118	39	27	16	10	5	4	304
South Dakota	-	16	49	14	5	2	1	0	0	88
Tennessee	3	382	100	36	17	10	4	2	2	554
Texas	16	428	543	216	135	72	27	13	7	1,442
Utah	0	70	112	38	18	10	3	2	1	253
Vermont	-	46	12	3	2	1	0	0	0	64
Virginia	13	152	223	68	33	20	7	4	2	508
Washington	-	113	124	43	22	11	7	6	8	335
West Virginia	-	102	85	20	14	7	3	2	1	235
Wisconsin	-	104	107	59	46	24	12	7	5	364
Wyoming	-	36	35	17	8	4	3	1	2	106
U.S. Total	232	7,192	6,417	2,174	1,295	806	428	263	287	18,861
Puerto Rico	24	2	44	44	35	27	18	14	48	233
Grand Total	256	7,194	6,461	2,218	1,330	833	446	277	335	19,094

August 23, 2018
Table HM-64
4 of 4

MILES BY MEASURED PAVEMENT ROUGHNESS - URBAN

STATE	INTERNATIONAL ROUGHNESS INDEX (IRI) (1)
	OTHER FREEWAYS & EXPRESSWAYS										OTHER PRINCIPAL ARTERIAL
	NOT REPORTED (2)	< 60	60-94	95-119	120-144	145-170	171-194	195-220	> 220	TOTAL REPORTED	NOT REPORTED (2)	< 60	60-94	95-119	120-144	145-170	171-194	195-220	> 220	TOTAL REPORTED
Alabama	3	9	8	5	2	2	1	0	0	26	27	397	495	150	79	51	34	19	47	1,273
Alaska	-	-	-	-	-	-	-	-	-	-	5	13	35	28	19	12	9	7	11	134
Arizona	5	90	76	23	12	5	2	1	1	210	221	90	139	107	95	72	51	36	34	623
Arkansas	0	7	39	20	13	7	7	5	3	101	20	41	179	121	82	58	35	27	64	606
California	8	251	504	292	193	117	72	45	67	1,542	309	127	542	702	854	872	729	658	1,970	6,453
Colorado	-	51	145	52	33	21	10	6	6	324	0	63	228	188	170	134	86	65	134	1,068
Connecticut	-	83	105	27	16	8	3	2	1	244	-	19	143	148	124	98	61	40	78	712
Delaware	-	7	21	6	3	1	0	0	0	39	3	27	91	35	19	13	8	6	14	212
Dist. of Columbia	0	-	2	-	6	-	4	-	4	16	1	-	0	-	9	-	24	-	73	105
Florida	72	165	247	46	23	12	5	4	3	503	133	986	1,641	557	283	163	82	52	77	3,842
Georgia	1	45	72	23	18	10	5	2	2	176	10	464	1,002	371	198	111	66	46	109	2,367
Hawaii	-	0	4	6	6	5	4	3	4	34	2	22	43	39	41	35	25	16	43	264
Idaho	1	11	10	2	1	1	1	0	0	28	94	56	111	53	35	26	16	12	28	337
Illinois	-	10	42	27	13	14	7	2	2	117	0	135	689	555	442	350	230	183	304	2,888
Indiana	16	60	45	25	15	9	5	3	3	165	81	247	417	245	192	153	99	78	168	1,598
Iowa	-	-	-	-	-	-	-	-	-	-	80	84	188	154	119	90	52	40	100	828
Kansas	0	74	66	22	11	9	4	2	2	191	9	68	102	46	33	24	13	10	15	310
Kentucky	6	34	17	7	5	3	2	1	0	69	41	154	194	82	53	41	27	16	38	605
Louisiana	0	7	12	5	9	15	9	7	8	72	120	69	203	148	124	106	77	72	154	953
Maine	-	3	7	2	2	2	1	1	1	18	2	10	43	30	21	11	9	7	15	146
Maryland	0	90	134	37	18	13	6	4	8	311	7	156	275	129	98	83	58	51	153	1,003
Massachusetts	2	148	103	27	14	8	8	3	11	322	37	47	245	277	282	271	207	174	440	1,944
Michigan	0	84	157	56	25	15	7	6	6	355	3	145	460	387	325	273	206	171	396	2,362
Minnesota	2	52	98	35	15	9	5	3	2	219	1	146	224	97	55	35	21	12	25	616
Mississippi	-	14	30	8	5	3	2	1	1	64	1	124	273	156	109	81	52	39	117	950
Missouri	3	186	176	58	30	21	9	5	5	491	2	137	273	133	97	73	50	35	69	867
Montana	-	-	-	-	-	-	-	-	-	-	5	24	61	41	31	24	17	15	38	252
Nebraska	7	16	45	17	11	9	7	6	13	124	57	13	45	30	30	29	25	22	76	269
Nevada	-	22	9	7	8	4	2	0	0	53	6	117	93	48	38	26	18	9	19	368
New Hampshire	-	56	14	2	1	1	0	0	0	74	0	57	66	29	18	13	10	7	23	224
New Jersey	-	133	177	58	29	18	15	8	15	453	1	123	340	228	215	200	154	140	401	1,801
New Mexico	-	1	5	5	0	0	0	-	-	12	4	90	163	108	94	77	47	34	68	681
New York	79	41	214	134	97	79	57	44	70	737	144	87	654	473	358	292	207	185	753	3,009
North Carolina	1	175	182	63	31	18	7	4	5	486	78	152	646	405	265	158	100	61	128	1,915
North Dakota	-	-	-	-	-	-	-	-	-	-	1	24	58	35	28	19	13	9	23	209
Ohio	1	175	235	71	37	27	13	10	11	578	21	207	596	386	314	248	163	130	382	2,425
Oklahoma	1	40	81	34	23	13	6	4	3	204	14	70	208	174	176	142	108	85	195	1,158
Oregon	4	23	22	7	3	2	1	1	1	59	20	85	258	155	118	82	51	32	55	836
Pennsylvania	-	94	229	102	59	43	18	10	9	565	-	176	629	486	435	324	222	177	349	2,798
Rhode Island	1	14	30	16	10	4	3	1	2	80	6	7	21	28	44	48	39	39	112	337
South Carolina	0	16	37	13	7	5	2	1	2	84	-	51	337	247	172	117	58	33	49	1,064
South Dakota	-	1	7	4	3	1	1	0	0	18	-	6	30	24	25	17	14	12	10	137
Tennessee	1	74	51	20	13	6	3	3	2	172	76	517	650	244	153	93	60	40	77	1,834
Texas	118	193	508	265	163	95	37	15	10	1,286	419	625	1,477	919	696	543	385	318	769	5,731
Utah	-	19	20	6	3	1	0	0	0	49	7	108	246	119	75	43	24	15	20	649
Vermont	0	3	8	2	1	1	0	0	0	16	3	15	42	22	15	10	5	5	10	123
Virginia	3	79	178	50	22	13	6	2	1	352	23	54	367	277	219	164	105	69	75	1,330
Washington	0	113	187	50	28	14	8	7	15	421	24	50	250	227	195	155	110	99	332	1,419
West Virginia	0	0	3	3	2	2	1	2	1	14	3	21	163	81	51	31	16	15	19	396
Wisconsin	-	56	82	82	59	30	12	5	12	340	0	90	247	287	317	262	189	149	401	1,942
Wyoming	-	1	0	1	0	0	0	-	0	3	4	35	70	33	22	16	12	9	21	218
U.S. Total	336	2,826	4,444	1,822	1,101	699	381	230	313	11,816	2,127	6,629	15,951	10,045	8,059	6,368	4,479	3,578	9,081	64,189
Puerto Rico	55	-	-	0	0	0	0	-	1	1	318	-	2	5	8	11	10	9	32	77
Grand Total	390	2,826	4,444	1,822	1,101	699	382	230	314	11,817	2,445	6,629	15,953	10,049	8,067	6,380	4,489	3,586	9,112	64,266

(1) Data are reported as the International Roughness Index (IRI) in inches per mile. Reference: World Bank Technical Paper Number 46, 1986. Lower IRI represents smoother riding roadways; to obtain a comprehensive assessment of pavement condition, additional measures of pavement distress are needed. Includes structures.

(2) Includes unpaved miles and bridges.

(3) Estimated from sample data.

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Page last modified on November 27, 2018