State profile · Above median Poor share

Maine bridge safety

According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in Maine.

2,518
Public bridges
24.9%
Good condition
15.4%
Poor condition

Maine holds 2,518 public highway bridges (#45 of 52 by inventory) with a 15.41% Poor share (#4 of 52 by Poor share).

That is 15.4% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 50 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.

Inventory: FHWA NBI 2024 · last ETL August 2026

Total Bridges

2,518

Public highway bridges in Maine

Good Condition

24.9%

626 bridges rated 7-9

-25.1pp vs 50% benchmark

Poor Condition

15.4%

388 bridges whose lowest applicable component is rated 0-4

7.9pp vs national avg 7.5%

Maine vs national bridge condition

Maine - Good condition share 24.9%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Maine - Poor-condition share 51.4%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.

Maine in the national condition pattern

Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.

Inventory size and Poor-condition share are different measures: Maine has 2,518 bridges and a 15.4% Poor-condition share in the 2024 NBI, rank #50 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold. Scatter plot of 54 data points. 0%10%20%30%40% 0k20k40k60k Public bridges in inventory (thousands) Poor-condition share (%) ME, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 15.41%AL, Public bridges in inventory (thousands): 16.2k · Poor-condition share (%): 3.35%AK, Public bridges in inventory (thousands): 1.7k · Poor-condition share (%): 7.89%AZ, Public bridges in inventory (thousands): 8.6k · Poor-condition share (%): 1.15%AR, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 5.43%CA, Public bridges in inventory (thousands): 25.8k · Poor-condition share (%): 5.91%CO, Public bridges in inventory (thousands): 9k · Poor-condition share (%): 4.82%CT, Public bridges in inventory (thousands): 4.4k · Poor-condition share (%): 4.72%DE, Public bridges in inventory (thousands): 0.9k · Poor-condition share (%): 1.26%DC, Public bridges in inventory (thousands): 0.3k · Poor-condition share (%): 1.95%FL, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 2.79%GA, Public bridges in inventory (thousands): 15.1k · Poor-condition share (%): 1.59%GU, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 12.77%HI, Public bridges in inventory (thousands): 1.2k · Poor-condition share (%): 6.53%ID, Public bridges in inventory (thousands): 4.6k · Poor-condition share (%): 4.9%IL, Public bridges in inventory (thousands): 26.9k · Poor-condition share (%): 9.35%IN, Public bridges in inventory (thousands): 19.5k · Poor-condition share (%): 5.22%IA, Public bridges in inventory (thousands): 23.7k · Poor-condition share (%): 19.16%KS, Public bridges in inventory (thousands): 24.9k · Poor-condition share (%): 5.26%KY, Public bridges in inventory (thousands): 14.5k · Poor-condition share (%): 7.37%LA, Public bridges in inventory (thousands): 12.7k · Poor-condition share (%): 11.48%MD, Public bridges in inventory (thousands): 5.5k · Poor-condition share (%): 4.56%MA, Public bridges in inventory (thousands): 5.3k · Poor-condition share (%): 8.88%MI, Public bridges in inventory (thousands): 11.4k · Poor-condition share (%): 11.27%MN, Public bridges in inventory (thousands): 13.5k · Poor-condition share (%): 4.44%MS, Public bridges in inventory (thousands): 16.7k · Poor-condition share (%): 6.03%MO, Public bridges in inventory (thousands): 24.6k · Poor-condition share (%): 8.95%MT, Public bridges in inventory (thousands): 5.2k · Poor-condition share (%): 6.81%NE, Public bridges in inventory (thousands): 15.4k · Poor-condition share (%): 7.9%NV, Public bridges in inventory (thousands): 2.1k · Poor-condition share (%): 1.14%NH, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 7.51%NJ, Public bridges in inventory (thousands): 6.8k · Poor-condition share (%): 6.01%NM, Public bridges in inventory (thousands): 4k · Poor-condition share (%): 4.51%NY, Public bridges in inventory (thousands): 17.6k · Poor-condition share (%): 9.43%NC, Public bridges in inventory (thousands): 19.2k · Poor-condition share (%): 6.76%ND, Public bridges in inventory (thousands): 4.3k · Poor-condition share (%): 10.98%OH, Public bridges in inventory (thousands): 26.7k · Poor-condition share (%): 4.74%OK, Public bridges in inventory (thousands): 22.9k · Poor-condition share (%): 7.7%OR, Public bridges in inventory (thousands): 8.3k · Poor-condition share (%): 4.61%PA, Public bridges in inventory (thousands): 23.3k · Poor-condition share (%): 12.58%PR, Public bridges in inventory (thousands): 2.4k · Poor-condition share (%): 13.92%RI, Public bridges in inventory (thousands): 0.8k · Poor-condition share (%): 15.2%SC, Public bridges in inventory (thousands): 9.5k · Poor-condition share (%): 6.17%SD, Public bridges in inventory (thousands): 5.9k · Poor-condition share (%): 16.36%TN, Public bridges in inventory (thousands): 20.4k · Poor-condition share (%): 4.41%TX, Public bridges in inventory (thousands): 56.7k · Poor-condition share (%): 1.23%UT, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 2.91%VT, Public bridges in inventory (thousands): 2.9k · Poor-condition share (%): 2.9%VI, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 29.17%VA, Public bridges in inventory (thousands): 14.1k · Poor-condition share (%): 3.39%WA, Public bridges in inventory (thousands): 8.5k · Poor-condition share (%): 5.45%WV, Public bridges in inventory (thousands): 7.3k · Poor-condition share (%): 18.64%WI, Public bridges in inventory (thousands): 14.4k · Poor-condition share (%): 6.52%WY, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 6.51%
Inventory size and Poor-condition share are different measures: Maine has 2,518 bridges and a 15.4% Poor-condition share in the 2024 NBI, rank #50 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold.

Maine vs all states by public bridge inventory

Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges

2,518 45th of 54 higher than 9 of 54 states

States and territories, banded by public bridge inventory size

Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source FHWA National Bridge Inventory · 2024

Read the rank neighborhood for Maine

The highlighted point is Maine: 2,518 bridges and 15.41% in Poor condition, rank #50 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Maine on that same Poor-share ordering:

  • Puerto Rico: 2,385 bridges · 13.92% Poor
  • Rhode Island: 783 bridges · 15.20% Poor
  • Maine: 2,518 bridges · 15.41% Poor
  • South Dakota: 5,887 bridges · 16.36% Poor
  • West Virginia: 7,348 bridges · 18.64% Poor

The full national sortable table lives on the rankings page.

Material families in Maine

Exclusive FHWA material families across all 2,518 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.

Who maintains Maine’s inventory

State agency holds 87.8% of the 2,518 public highway bridges filed under Maine in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.

When Maine’s bridges were built

Pre-1950 construction accounts for 23.9% of the 2,518 bridges with a recorded original year in Maine. Era bands are orthogonal to the Poor-share ranking above.

Condition Distribution

Maine24.9%59.7%15.4%GoodFairPoor
Bridge inventory deck-condition mix - Maine (FHWA NBI)

Counties (16)

Androscoggin 135 Aroostook 229 Cumberland 344 Franklin 128 Hancock 70 Kennebec 188 Knox 53 Lincoln 63 Oxford 252 Penobscot 301 Piscataquis 80 Sagadahoc 64 Somerset 173 Waldo 92 Washington 110 York 236

Maine vs nearby ranks

Adjacent states by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Maine on the same metric.

PR

Puerto Rico

13.92% top marginal rate
Structure
Progressive
Burden @ $100K
$2,385

RI

Rhode Island

15.20% top marginal rate
Structure
Progressive
Burden @ $100K
$783
Selected

ME

Maine

15.41% top marginal rate
Structure
Progressive
Burden @ $100K
$2,518

SD

South Dakota

16.36% top marginal rate
Structure
Progressive
Burden @ $100K
$5,887

WV

West Virginia

18.64% top marginal rate
Structure
Progressive
Burden @ $100K
$7,348

Bridges Needing Most Attention in Maine

Six lowest-condition bridges in Maine, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

LEDGELAWN AV

Poor

Over: CROMWELL BROOK

.1MI S CROMWELL HBR RD, Hancock, ME

Built 1945 Load: 0.0 t ADT: 489

BERRY RD

Poor

Over: SANDY STREAM

1.3 MI W OF DUMP ROAD, Waldo, ME

Built 1964 Load: 0.0 t ADT: 30

SCRIBNERS MILLS RD

Poor

Over: CROOKED RIVER

1.5 MI E MAPLE RDGE RD, Cumberland, ME

Built 1936 Load: 0.0 t ADT: 60

TANNERY BRIDGE RD

Poor

Over: LEMON STREAM

0.1 MI SE WIRE BRG RD, Somerset, ME

Built 1950 Load: 0.0 t ADT: 90

IRR BIA RTE 158B

Poor

Over: PISTOL STREAM

0.3KM NE LWR PISTOL LAKE, Hancock, ME

Built 1990 Load: 0.0 t

STEWART HILL RD

Poor

Over: COLD BK

1 MI N RT 150, Somerset, ME

Built 1978 Load: 2.7 t ADT: 63

All Bridges in Maine

LEBANON RD

Fair

Over: CONCORD RIVER

0.2 MI NW OF MILTON TWP, Oxford, ME

Built 1967 Load: 55.1 t ADT: 341

HARDING RD

Fair

Over: STATE OF MAINE RR

0.1 MI N OF OLD ROUTE 1, Cumberland, ME

Built 1930 Load: 55.4 t ADT: 110

WADSWORTH ST

Fair

Over: MAINE CENTRAL RAILROAD

0.2 MI SLY OF US 1, Knox, ME

Built 1932 Load: 55.4 t ADT: 2,507

HUBBARD RD

Fair

Over: GREAT BROOK

.3 MI S JCT 202, York, ME

Built 1975 Load: 55.4 t ADT: 1,904

COURT ST

Fair

Over: ANDROSCOGGIN RIVER

LEWISTON-AUBURN TL, Androscoggin, ME

Built 1983 Load: 55.4 t ADT: 33,048

THE ARNOLD TRL

Fair

Over: NORTH BRANCH DEAD RIVER

250 FT N OF ALDER STR TWP, Franklin, ME

Built 1934 Load: 55.4 t ADT: 609

W FRYEBURG RD

Fair

Over: MILL BROOK

0.4 MI NE OF N.H., Oxford, ME

Built 1963 Load: 55.4 t ADT: 1,090

I 95 SB

Fair

Over: N MAIN ST(MADAWASKA RD)

0.5 MI S OF TOWNLINE, Somerset, ME

Built 1964 Load: 55.7 t ADT: 8,970

PARK ST

Fair

Over: MOODY BROOK

0.7 MI S OF WEST PARIS, Oxford, ME

Built 1964 Load: 55.7 t ADT: 6,615

VAN BUREN RD

Fair

Over: B & A RR (NO TRACKS)

2.1 MI N OF JCT RTE 89, Aroostook, ME

Built 1936 Load: 55.7 t ADT: 3,450

PENLEY AV

Fair

Over: LITTLE ANDROSCOGGIN RIV

0.2 MI WLY OF MAIN ST, Oxford, ME

Built 1978 Load: 55.7 t ADT: 630

MAIN ST

Fair

Over: CARIBOU STREAM

0.4 MI N JCT 161 & 164, Aroostook, ME

Built 1922 Load: 56.1 t ADT: 7,670

US HIGHWAY 1A

Fair

Over: MILL RIVER

MILBRIDGE/HARRNGTON T.L., Washington, ME

Built 1942 Load: 56.1 t ADT: 3,461

SANDY CREEK RD

Fair

Over: WILLETTE BROOK

0.2 MI W OF S JCT US 302, Cumberland, ME

Built 2000 Load: 56.1 t ADT: 3,640

US 1 SB

Fair

Over: NEW MEADOWS RIVER

BRUNSWICK-W.BATH TL, Cumberland, ME

Built 1966 Load: 56.4 t ADT: 17,110

POPLAR ST

Fair

Over: MUD POND INLET

2 MI E TOWNLINE, Penobscot, ME

Built 1933 Load: 56.4 t ADT: 1,153

BACK RD

Fair

Over: BROWN BROOK

0.3 MI SE OF DAVIDSON RD, Piscataquis, ME

Built 1956 Load: 56.4 t ADT: 296

US 1 NB

Fair

Over: NEW MEADOWS RIVER

BRUNSWICK-W.BATH TL, Cumberland, ME

Built 1966 Load: 56.4 t ADT: 16,567

CONGRESS ST/RTE 22

Fair

Over: I-95

0.391 mi W of SR 9, Cumberland, ME

Built 2007 Load: 56.7 t ADT: 11,350

I 95 NB

Fair

Over: MEDUNKEUNK STREAM

2.5 MI N T2 R8 TL, Penobscot, ME

Built 1975 Load: 56.7 t ADT: 3,160

I 295 SB

Fair

Over: CURTIS FARM RD

INTERCHANGE 37, Sagadahoc, ME

Built 1976 Load: 56.7 t ADT: 12,180

OSSIPEE TRL

Fair

Over: LITTLE RIVER

1.6 MI W JCT RTE 4, Cumberland, ME

Built 1932 Load: 56.7 t ADT: 15,590

ROUTE 137

Fair

Over: OUTLET STR(HAYDEN BRK)

1.2 MI E 201, Kennebec, ME

Built 1954 Load: 56.7 t ADT: 7,562

I-95 NORTHBOUND

Fair

Over: ROUTES 8 11 &27

I-95 INTERCHANGE 112, Kennebec, ME

Built 1959 Load: 56.7 t ADT: 15,720

ATHENS RD

Fair

Over: HIGGINS BROOK

0.2 MI S JCT RTE 154, Somerset, ME

Built 1959 Load: 56.7 t ADT: 1,320

I 295 NB

Fair

Over: RT 125 & 138 (MAIN ST)

INTERCHANGE 37, Sagadahoc, ME

Built 1976 Load: 56.7 t ADT: 12,060

US 1

Fair

Over: PENNAMAQUAM RIVER

1.5 MI E JCT RTE 214, Washington, ME

Built 1951 Load: 57.0 t ADT: 2,093

NEW DAM RD

Fair

Over: MOUSAM RIVER

2.6 MI E RTE 4, York, ME

Built 1980 Load: 57.3 t ADT: 2,100

ELM ST

Fair

Over: NEOUTAQUET RIVER

BAETWEEN JCTS RTES 4 & 9, York, ME

Built 1974 Load: 57.3 t ADT: 15,160

ROUTE 1

Fair

Over: RAMP A

1.7 MI. W. TOWNLINE, Lincoln, ME

Built 1961 Load: 57.3 t ADT: 8,260

SOUTH RD

Fair

Over: E BR MATTAWAMKEAG RIVER

200 E OF JCT RIVER RD, Aroostook, ME

Built 1975 Load: 57.7 t ADT: 77

I 95 NB

Fair

Over: W BR MATTAWAMKEAG RIVER

1.1 MI SW DYER BROOK TL, Aroostook, ME

Built 1979 Load: 57.7 t ADT: 2,360

BEAR RIVER RD

Fair

Over: SWIFT CAMBRIDGE RIVER

6.2 MI NW OF NEWRY, Oxford, ME

Built 1937 Load: 57.7 t ADT: 820

MIDDLE RD

Fair

Over: PRESUMPSCOT RIVER

1 MI N TOWNLINE, Cumberland, ME

Built 1951 Load: 57.7 t ADT: 4,818

POND RD

Fair

Over: COBBOSSEE STREAM

1 MI N TOWNLINE, Kennebec, ME

Built 1958 Load: 57.7 t ADT: 2,066

ST RTE 191

Fair

Over: HOLMES STREAM

0.2 MI N OFCUTLER, Washington, ME

Built 1974 Load: 58.0 t ADT: 947

E MADRID RD

Fair

Over: PERHAM STREAM

4 MI NW RTE 142, Franklin, ME

Built 1996 Load: 58.3 t ADT: 77

ACADEMY ROAD

Fair

Over: I-95

0.615 mi E Center Rd, Kennebec, ME

Built 1954 Load: 58.3 t ADT: 320

I 95 NB

Fair

Over: HEMLOCK STREAM

.6 MI S EDINBURG TL, Penobscot, ME

Built 1971 Load: 58.3 t ADT: 4,610

US 201

Fair

Over: KENNEBEC RIVER

100 FT NW LAKE MOXIE RD, Somerset, ME

Built 1990 Load: 58.3 t ADT: 2,420

KELLY RD

Fair

Over: INTERSTATE 95 NB & SB

I-95 INTERCHANGE # 191, Penobscot, ME

Built 1961 Load: 58.3 t ADT: 4,778

WASHINGTON RD

Fair

Over: MEDOMAK RIVER

1 MI N OF OLD AUGUSTA RD, Lincoln, ME

Built 1972 Load: 58.3 t ADT: 1,610

BACK RIDGE RD

Fair

Over: CAPTAIN AMBROSE BEAR STR

0.2 MI NORTH OF TOWN LINE, Aroostook, ME

Built 1992 Load: 58.3 t ADT: 157

UPTON RD

Fair

Over: STONEY BROOK

2.2 MI W JCT RTE 5 & 120, Oxford, ME

Built 1951 Load: 58.6 t ADT: 248

I-95 (NB)

Fair

Over: AUBURN INTERCHANGE ROAD

0.329 mi E of Kittyhawk, Androscoggin, ME

Built 1956 Load: 59.0 t ADT: 4,910

SKIDMORE RD

Fair

Over: MEDOMAK RIVER

1.5 MI N OF OLD UNION RD, Knox, ME

Built 2001 Load: 59.0 t ADT: 100

MAIN ST

Fair

Over: KELLY BROOK

2 MI SO TOWNLINE, Somerset, ME

Built 2008 Load: 59.0 t ADT: 1,180

AIRLINE RD

Fair

Over: EAST MACHIAS RIVER

4 MI NE JCT OF RTE 192, Washington, ME

Built 1973 Load: 59.0 t ADT: 2,814

SOUTH ST

Fair

Over: B&MRR

.4 MI W JCT US 1, York, ME

Built 1980 Load: 59.0 t ADT: 6,682

I-95 SB

Fair

Over: Auburn Interchange

.32 mi E of Kittyhawk Ave, Androscoggin, ME

Built 1956 Load: 59.0 t ADT: 9,180

Showing 1,301-1,350 of 2,518 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

Understanding Bridge Conditions

How FHWA rates bridge condition on a 0-9 scale.

Check Your Daily Bridges

How to look up bridge condition data for bridges on your route.

Read our methodology — how this data is sourced, computed, and verified.

What to do with this

Use Maine's inventory picture to drill to a county or a specific span.

NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.

Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Maine Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.