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

E RIDGE RD

Fair

Over: OLAMON STREAM

1 MI W OF SPRING BR RD, Penobscot, ME

Built 1954 Load: 99.9 t ADT: 533

MADORE RD

Fair

Over: HAMMOND BROOK

1.5 MI S JCT 1, Aroostook, ME

Built 1959 Load: 99.9 t ADT: 50

AUSTIN ST

Fair

Over: MILL BROOK

150 FT SLY OF PRIDE ST, Cumberland, ME

Built 1960 Load: 99.9 t ADT: 2,851

W PARIS RD

Fair

Over: LITTLE ANDROSCOGGIN RIVE

1.1 MI W OF WEST PARIS, Oxford, ME

Built 1967 Load: 99.9 t ADT: 399

AVENUE RD

Good

Over: MEADOW BOOK

.4 MI S RT 94, Penobscot, ME

Built 2010 Load: 0.0 t ADT: 707

DOUGHTY RD

Good

Over: E CATHANCE RIVER

.3 MI W RTE 201, Sagadahoc, ME

Built 2023 Load: 0.0 t ADT: 220

MAIN ST

Good

Over: MIDDLE RIVER

.4 MI E TOWNLINE, Washington, ME

Built 1930 Load: 0.0 t ADT: 9,731

CROSWELL RD

Good

Over: SANDY RIVER

IMMEDIATELY N JCT RTE 156, Franklin, ME

Built 2022 Load: 0.0 t ADT: 4,261

POPLAR ST

Good

Over: W BRANCH PENOBSCOT RIVER

1.7 MI.W. TOWNLINE, Penobscot, ME

Built 2023 Load: 0.0 t ADT: 851

STANLEY RD

Good

Over: MOUSAM RIVER

.2 MI N JCT 11, York, ME

Built 1978 Load: 6.2 t ADT: 1,600

WEYMOUTH RD

Good

Over: COLLYER BROOK

0.5 MI NW RT 4, Cumberland, ME

Built 2009 Load: 6.5 t ADT: 1,651

BIA ROUTE 1530

Good

Over: JOHNNY AYRES BROOK

7.53KM NE OF ACCESS ROAD, Penobscot, ME

Built 2012 Load: 11.6 t ADT: 30

IRR DUNCAN POND RD

Good

Over: SOUTH BRANCH

23KM NORTH OF JACKMAN, Somerset, ME

Built 1990 Load: 12.9 t ADT: 25

PRATTS ISLAND RD

Good

Over: TIDE WATER

0.5 MI. S OF RTE 27, Lincoln, ME

Built 2013 Load: 17.2 t ADT: 160

MAYVILLE RD

Good

Over: ANDROSCOGGIN RIVER

US 2 OVER ANDROS RV, Oxford, ME

Built 1968 Load: 18.1 t ADT: 9,113

S PORTLAND INTER

Good

Over: I-95

0.194 mi NW Maine Mall Rd, Cumberland, ME

Built 2022 Load: 21.1 t ADT: 5,320

WATER STREET

Good

Over: US 1 NB & SB

.1 MI E JCT #1 9 24, Cumberland, ME

Built 2003 Load: 21.4 t ADT: 2,023

LUCAS ST

Good

Over: CAPISIC BROOK

0.1 MI S RT 25, Cumberland, ME

Built 2006 Load: 23.7 t ADT: 340

N MAIN ST

Good

Over: BOG BROOK

1.0 MI NLY JCT 11 & 121, Androscoggin, ME

Built 1996 Load: 24.0 t ADT: 2,119

SHAKER RD

Good

Over: I-95

0.136 mi E of SR 26A, Cumberland, ME

Built 1956 Load: 24.3 t ADT: 6,960

FERNALD RD

Good

Over: KENDUSKEAG STR

.2 MI. S.W. RTE 94, Penobscot, ME

Built 2003 Load: 24.3 t ADT: 10

HOWARD MILL ROAD

Good

Over: W BRANCH MAGURREWOCK CRK

HOWARD MILL ROAD, Washington, ME

Built 2000 Load: 24.5 t ADT: 20

GOODALL HEATH ROAD

Good

Over: W BRANCH MAGURREWOCK CRK

GOODALL HEATH ROAD, Washington, ME

Built 2000 Load: 24.5 t ADT: 1

SWAN RD

Good

Over: FILLIBROWN BROOK

.5 MI NE RT 27, Franklin, ME

Built 2009 Load: 24.6 t ADT: 130

FDR 52

Good

Over: BULL BROOK

MAP 15, Oxford, ME

Built 1980 Load: 24.6 t ADT: 50

BIA ROUTE 443

Good

Over: MOUNTAIN BROOK

21.1 KM S MILLNOCKET ME, Penobscot, ME

Built 2004 Load: 24.9 t ADT: 30

HACKETT ROAD

Good

Over: I-95

0.424 mi W of Main ST, Androscoggin, ME

Built 1956 Load: 25.9 t ADT: 621

RTE 197

Good

Over: I-95

0.503 mi E Academy, Kennebec, ME

Built 1956 Load: 25.9 t ADT: 1,651

TWO ROD ROAD

Good

Over: I-95

0.441 mi W of Payne RD, Cumberland, ME

Built 1998 Load: 26.9 t ADT: 363

BIA ROUTE 449

Good

Over: E BRANCH SEBOEIS STREAM

16.6 KM S OF MILLNOCK ME, Penobscot, ME

Built 2003 Load: 27.0 t ADT: 20

LISBON RD

Good

Over: I-95

0.962 mi E of Grove St, Androscoggin, ME

Built 1956 Load: 27.2 t ADT: 1,682

CASCO BAY BRIDGE

Good

Over: FORE RIVER

PORTLAND - S PORTLAND TL, Cumberland, ME

Built 1998 Load: 27.5 t ADT: 14,893

WEST SIDE RD

Good

Over: COLD BROOK

.5 MI N OF TL, Oxford, ME

Built 1979 Load: 27.9 t ADT: 21

OLD ALFRED RD

Good

Over: I-95

0.060 mi W of Skillings R, York, ME

Built 2003 Load: 27.9 t ADT: 614

PORTLAND RD

Good

Over: KENNEBUNK RIVER

1.1MI N JCT RTE 9A & 35, York, ME

Built 2016 Load: 27.9 t ADT: 15,672

BROCK SCHOOL RD

Good

Over: DARNIT BROOK

0.4 MI SW DARNIT RD, Oxford, ME

Built 2011 Load: 28.2 t ADT: 155

BRIDGE ST

Good

Over: FISH RIVER

250 FT E OF JCT ROUTE 11, Aroostook, ME

Built 2000 Load: 28.2 t ADT: 4,100

SANDY SHORES RD

Good

Over: BACK RIVER

1 MI W RT 1, Knox, ME

Built 2019 Load: 28.5 t ADT: 176

CAT MOUSAM/RTE 99

Good

Over: I-95

0.178 mi W Coventry Woods, York, ME

Built 2002 Load: 28.5 t ADT: 2,890

SANFORD RD

Good

Over: B & M RR

1.3 MI W JCT 1, York, ME

Built 1988 Load: 28.5 t ADT: 15,290

MAXWELL ROAD

Good

Over: I-95

0.071 mi N of Terry Circ, Androscoggin, ME

Built 1956 Load: 29.2 t ADT: 373

LITTLE MADAWASKA L

Good

Over: LITTLE MADAWASKA RIVER

0.7 MI W OF JCT WEST RD, Aroostook, ME

Built 2000 Load: 29.5 t ADT: 158

GROVE STREET

Good

Over: I-95

0.265 mi. N of Crowley Rd, Androscoggin, ME

Built 1956 Load: 29.8 t ADT: 3,195

BONNY EAGLE RD

Good

Over: SACO RIVER

STANDISH TOWNLINE, York, ME

Built 2013 Load: 29.8 t ADT: 3,600

MAYALL RD

Good

Over: I-95

0.557 mi E Colebrook Rd, Cumberland, ME

Built 2008 Load: 30.1 t ADT: 639

BOOM ROAD

Good

Over: I-95

0.036 mi SE of Berry Rd, York, ME

Built 1995 Load: 30.1 t ADT: 1,070

COBURN AVE

Good

Over: WEBB RIVER

0.4 MI W RT 142, Oxford, ME

Built 2008 Load: 30.1 t ADT: 231

BIRCHES RD

Good

Over: PASSAGASSAWAUKEAG RIVER

0.9 MI NW JCT RTE 137, Waldo, ME

Built 1955 Load: 30.1 t ADT: 402

JAMES RD

Good

Over: PAINE BROOK

0.5 MI W OF JCT RTE 150, Somerset, ME

Built 2004 Load: 30.5 t ADT: 70

CANADA RD

Good

Over: CARNEY BROOK

8.2 MI N OF BINGHAM T.L., Somerset, ME

Built 2003 Load: 30.5 t ADT: 2,270

Showing 1,501-1,550 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.