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

AROOSTOOK RD

Good

Over: WALLAGRASS STREAM

4.7 MI N TOWNLINE, Aroostook, ME

Built 2010 Load: 51.8 t ADT: 1,640

TIDSWELL RD

Good

Over: MARTIN STREAM

0.1 MI E RT 4, Androscoggin, ME

Built 2020 Load: 52.2 t ADT: 564

THOMPSON MEADOW DR

Good

Over: MEADOW BROOK

.2 MI W OLD COUNTY RD, Knox, ME

Built 2019 Load: 52.2 t ADT: 124

COUNTY RD

Good

Over: MAYS STREAM

.6 MI E TOWNLINE, Washington, ME

Built 2019 Load: 52.2 t ADT: 2,230

E B HILL RD

Good

Over: SWIFT CAMBRIDGE RIVER

1.5 MI E OF RTE 26, Oxford, ME

Built 2004 Load: 52.2 t ADT: 175

DURHAM BRIDG RD

Good

Over: STETSON STREAM

1.4 MI N OF STETSON ROAD, Penobscot, ME

Built 2003 Load: 52.2 t ADT: 567

N MAIN ST

Good

Over: SCHOODIC

.4 MI S TOWNLINE, Washington, ME

Built 2021 Load: 52.2 t ADT: 705

WHITES BRIDGE RD

Good

Over: SEBAGO LAKE

0.9 MI WLY RTE 302, Cumberland, ME

Built 2010 Load: 52.2 t ADT: 2,275

IRR PISTOL LAKE RD

Good

Over: PISTOL STREAM

OUTLET OF SIDE PISTOL LK, Hancock, ME

Built 1990 Load: 52.2 t ADT: 5

BRIDGE ST

Good

Over: NARRAGUAGUS RIVER

.3 MI N JCT 1-1AON1A, Washington, ME

Built 2008 Load: 52.5 t ADT: 4,658

WESTERN AV

Good

Over: MOUSAM RIVER

1.4 MI E OF WELLS, York, ME

Built 2013 Load: 52.5 t ADT: 5,097

CARRABASSETT DR

Good

Over: S BRANCH CARRABASSETT R

9.9 MI N KINGFIELD TL, Franklin, ME

Built 2011 Load: 52.5 t ADT: 2,445

CASTLE ISLAND RD

Good

Over: LONG POND

50 W OF BELGRADE TL, Kennebec, ME

Built 2023 Load: 52.5 t ADT: 1,395

BUZZEL ROAD

Good

Over: COLDWATER BROOK

.1 MI E GORDON RD, York, ME

Built 2017 Load: 52.8 t ADT: 420

I 295 NB

Good

Over: VERANDA ST & US 1

I-295 OVER US1, Cumberland, ME

Built 2022 Load: 52.8 t ADT: 27,010

SLY BROOK RD

Good

Over: SLY BROOK

0.7 MI SE OF WALLAGRASS, Aroostook, ME

Built 2004 Load: 53.1 t ADT: 700

NEILDS AV

Good

Over: Maine Central RR

0.1 MI W OF JCT US 1, Washington, ME

Built 2009 Load: 53.1 t ADT: 331

BROWNS CROSSING RD

Good

Over: ROYAL RIVER

0.3MI E OLD DANVILLE RD, Androscoggin, ME

Built 2013 Load: 53.5 t ADT: 77

BENNOCH RD

Good

Over: PUSHAW STREAM

.5 MI N OF JCT RTE 43, Penobscot, ME

Built 2009 Load: 53.5 t ADT: 1,732

POST RD

Good

Over: BRANCH BROOK

KENN-WELLS TOWNLINE, York, ME

Built 2016 Load: 53.5 t ADT: 6,153

MAIN ST

Good

Over: PENNESSEWASSEE OUTLET

.5 MI S OF WLY JCT 117, Oxford, ME

Built 1938 Load: 53.5 t ADT: 17,709

RANGELEY RD

Good

Over: SANDY RIVER

0.5 MI SE OF MADRID TL, Franklin, ME

Built 2021 Load: 53.5 t ADT: 1,407

NEQUASSET RD

Good

Over: SMO RAILROAD

0.4 MI N LY OF RTE 1, Sagadahoc, ME

Built 1999 Load: 53.8 t ADT: 598

FLAT ROCK BRIDGE R

Good

Over: SALMON FALLS RIVER

0.4 MI SW RIVER RD, York, ME

Built 1984 Load: 53.8 t ADT: 1,050

MIDDLE RD

Good

Over: FIELDS BROOK

3.5 MI SO TOWNLINE, Kennebec, ME

Built 2018 Load: 53.8 t ADT: 1,780

ROUTE 1

Good

Over: PRESUMPSCOT*RIVER

FALMOUTH-PORTLAND TL, Cumberland, ME

Built 2014 Load: 54.1 t ADT: 12,680

DOAK RD

Good

Over: PASSAGASSAWAUKEAG RIVER

1.1 MI NW OF JCT RTE 7, Waldo, ME

Built 1979 Load: 54.4 t ADT: 767

WATER ST

Good

Over: SALMON STR

1.2 MI W TOWNLINE, Piscataquis, ME

Built 2006 Load: 54.8 t ADT: 4,848

SANDY STREAM RD

Good

Over: SANDY STREAM

.1 MI W JCT 201, Somerset, ME

Built 1999 Load: 54.8 t ADT: 220

FORE RIVER PKY

Good

Over: Mountain division RR

.3 mi east of I-295, Cumberland, ME

Built 2005 Load: 54.8 t ADT: 4,090

MORSE RD

Good

Over: ROYAL RIVER

2.4 MI SE RT 202, Cumberland, ME

Built 1990 Load: 55.1 t ADT: 1,530

PIKES HL

Good

Over: PENNESSEEWASSEE STREAM

.1 E OF RT 117, Oxford, ME

Built 2004 Load: 55.4 t ADT: 774

MAYSVILLE ST

Good

Over: BANGOR & AROOSTOOK RR.

0.7 MI. SE JCT US 1, Aroostook, ME

Built 1994 Load: 55.4 t ADT: 4,630

GAMMON RD

Good

Over: E BRANCH NEZINSCOT RIVER

JCT STETSON & GAMMON RDS, Oxford, ME

Built 2020 Load: 55.7 t ADT: 257

US HIGHWAY 1A

Good

Over: COLE CREEK

0.3 MI ELY OF MILBRIDGE, Washington, ME

Built 1997 Load: 55.7 t ADT: 3,461

NORTH RD

Good

Over: ALDER BROOK

3 MI WLY OF TRESTLE ROAD, Piscataquis, ME

Built 2000 Load: 56.4 t ADT: 164

PINKHAM BROOK RD

Good

Over: MEADOW BRK

.5 MI S TOWNLINE, Androscoggin, ME

Built 1918 Load: 56.4 t ADT: 3,463

OWLSBORO RD

Good

Over: SARGENT BROOK

.8 MI W JCT 11, Penobscot, ME

Built 2017 Load: 56.4 t ADT: 195

BOG RD

Good

Over: GILMAN STREAM

.2 MI. E. JCT 146, Somerset, ME

Built 2009 Load: 56.4 t ADT: 1,803

MAIN RD

Good

Over: SUNKHAZE ST/R OVERFLOW

3.2 MI N OF JCT RTE 178, Penobscot, ME

Built 2017 Load: 56.7 t ADT: 4,649

CRYSTAL RD

Good

Over: FISH STREAM

0.6 MI W OF ISLAND FALLS, Aroostook, ME

Built 2008 Load: 56.7 t ADT: 970

HIGH ST./RTE. 9A

Good

Over: I-95

0.174 mi W of Harrisecket, York, ME

Built 2001 Load: 57.0 t ADT: 2,760

SPRUCE HEAD RD

Good

Over: WESKEAG RIVER

1.2 MI SW OF OWLS HEAD TL, Knox, ME

Built 2017 Load: 57.0 t ADT: 3,910

MAINE AV

Good

Over: COBBOSSEE STREAM

0.2 MI S OF JCT RTE US201, Kennebec, ME

Built 2019 Load: 57.0 t ADT: 8,555

MINGO LOOP RD

Good

Over: HUNTER COVE

1.3 MI W OF JCT RTE 4, Franklin, ME

Built 2018 Load: 57.3 t ADT: 200

GERRISH ISLAND LAN

Good

Over: CHAUNCEY CREEK

0.2 MI S OF JCT RTE 103, York, ME

Built 2006 Load: 57.3 t ADT: 942

BYPASS DR

Good

Over: ROUTE 24 MIDDLESEX RD

1.4 MI E JCT RTE US 201, Sagadahoc, ME

Built 1997 Load: 57.3 t ADT: 22,360

HARRASEEKET RD

Good

Over: BRANCH BROOK

1.3 MI NW RTE 1, York, ME

Built 2001 Load: 57.7 t ADT: 500

SINNOTT RD

Good

Over: BOSTON & MAINE RAILROAD

1.1 MI E OF JCT US1, York, ME

Built 1995 Load: 57.7 t ADT: 2,712

BRIDGTON RD

Good

Over: SACO RIVER OVERFLOW

4.0 MI E JCT OF RTE 5, Oxford, ME

Built 2020 Load: 57.7 t ADT: 2,991

Showing 2,001-2,050 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.