- 15% (366 bridges) of Maine's 2,402 bridges are structurally deficient, meaning key elements like the deck or superstructure are in poor condition. - 18% (425 bridges) are functionally obsolete as they do not meet current design standards. - Between 2003-2012, $705.8 million in federal funding supported construction of 709 bridges in Maine. - It is estimated that $912 million would be needed to repair 775 bridges in the state.

1. © 2014 The American Road & Transportation Builders Association (ARTBA). All rights reserved. No part of this document may be reproduced or
transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of
ARTBA.
Highlights from FHWA’s 2013 National Bridge Inventory Data:
 Of the 2,402 bridges in the state, 366 bridges, or 15% are classified as structurally deficient. This
means one or more of the key bridge elements, such as the deck, superstructure or
substructure, is considered to be in “poor” or worse condition.1
 There are 425 bridges, or 18% of all state bridges, classified as functionally obsolete. This means
the bridge does not meet design standards that are in line with current practice.
 Federal-aid investment in Maine has supported $705.8 million in bridge construction spending
on 709 bridges between 2003 and 2012, according to FHWA data.2
 Since 2004, 207 new bridges have been constructed in the state and 64 bridges have undergone
major reconstruction.
 The state estimates that it would cost approximately $912.0 million to fix a total of 775 bridges
in the state.3
Bridge Inventory:
All Bridges Structurally deficient Bridges
Type of Bridge Total
Number
Area (sq.
meters)
Daily
Crossings
Total
Number
Area (sq.
meters)
Daily
Crossings
Rural Bridges
Interstate 159 119,069 1,647,197 11 10,106 169,445
Other principal arterial 139 103,510 1,042,102 16 15,748 106,840
Minor arterial 185 98,884 977,810 24 14,396 109,926
Major collector 449 158,871 962,438 57 20,633 114,883
Minor collector 260 67,056 298,576 45 10,814 63,989
Local 736 124,921 338,103 150 15,827 38,165
Urban Bridges
Interstate 126 187,957 2,576,272 3 4,848 81,945
Other freeway 19 33,529 277,542 2 4,490 24,681
Principal arterial 56 88,788 787,961 7 5,929 97,932
Minor arterial 82 136,580 980,535 9 12,107 76,268
Collector 109 64,941 630,313 19 15,296 146,426
Local 82 22,988 109,819 23 6,705 25,195
Not classified 0 0 0 0 0 0
Total 2,402 1,207,094 10,628,668 366 136,899 1,055,695
1
According to the Federal Highway Administration (FHWA), a bridge is classified as structurally deficient if the condition rating for the deck,
superstructure, substructure or culvert and retaining walls is rated 4 or below or if the bridge receives an appraisal rating of 2 or less for
structural condition or waterway adequacy. During inspections, the condition of a variety of bridge elements are rated on a scale of 0 (failed
condition) to 9 (excellent condition). A rating of 4 is considered “poor” condition and the individual element displays signs of advanced section
loss, deterioration, spalling or scour.
2
ARTBA analysis of FHWA data, includes all bridge construction related spending on projects approved by FHWA between 2003 and 2012.
3
This data is provided by bridge owners as part of the FHWA data and is required for any bridge eligible for the Highway Bridge Replacement
and Rehabilitation Program. However, for some states this amount is very low and likely not an accurate reflection of current costs.
State Bridge Profile
Maine

2. © 2014 The American Road & Transportation Builders Association (ARTBA). All rights reserved. No part of this document may be reproduced or
transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of
ARTBA.
Proposed bridge work:
Type of Work Number Cost (millions) Daily Crossings Area (sq. meters)
Bridge replacement 339 $807.4 1,001,222 135,126
Widening & rehabilitation 296 $76.5 1,079,907 106,879
Rehabilitation 140 $28.1 764,155 90,979
Deck rehabilitation/replacement 0 $0.0 0 0
Other work 0 $0.0 0 0
Top 10 Most Traveled Structurally Deficient Bridges in the State
County Year
Built
Daily
Crossings
Type of Bridge Location
(route/water under the bridge, traffic on the bridge and location)
Penobscot 1960 50,330 Urban Interstate KENDUSKEAG STR&VALLEY AV, INTERSTATE 95, 0.7 MI W JCT
RTE 15
Cumberland 1956 27,415 Rural Interstate PISCATIQUA RIVER STR#28, I-95, 0.567 mi W of SR 100&26
Cumberland 1956 27,415 Rural Interstate PISCATIQUA RIVER STR #31, I-95, 0.095 mi NE of Hurricane
Cumberland 1989 23,248 Urban other
principal arterial
STROUDWATER RIVER, ROUTES 9 & 22, 0.6 MI NE OF SW JCT
9&22
Somerset 1960 20,830 Rural Interstate ROUTE 201, I-95, 2 MI N TOWNLINE
Somerset 1964 18,750 Rural Interstate M C RR, INTERSTATE 95, 0.1 MI E OF 95 / US201
Sagadahoc 1933 17,999 Rural arterial M C RR & A MARSH, US ROUTE 1, 1.1 MI NE OF BATH T L
Sagadahoc 1958 17,980 Urban
freeway/expressway
SMO RR - CITY STREETS, US RTE # 1, 0.1 MI E OF JCT RTE 209
Cumberland 1943 17,073 Urban collector PRESUMPSCOT*RIVER, RTE 1, FALMOUTH-PORTLAND TL
Penobscot 1960 16,735 Urban other
principal arterial
INTERSTATE 95, ROUTE 222, INTERCHANGE #47
Sources: All data is from the 2013 National Bridge Inventory, released by the Federal Highway Administration in March 2014.
Note that specific conditions on bridge may have changed as a result of recent work. Cost estimates of bridge work provided as
part of the data and have been adjusted to 2013$ for inflation and estimated project costs. Contract awards data is for state
and local government awards and comes from McGraw Hill. Note that additional bridge investment may be a part of other
contract awards if a smaller bridge project is included with a highway project, and that would not be accounted for in the total
in this profile.