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

ROUTE 1

Fair

Over: DAMARISCOTTA RIVER

1.5 MI E US1B, Lincoln, ME

Built 1961 Load: 43.4 t ADT: 9,650

RIDGE RD

Fair

Over: I-95 NB & SB

0.3 MI S OF US RTE 2, Penobscot, ME

Built 1962 Load: 43.4 t ADT: 1,793

LOCUST ST

Fair

Over: MAIN CANAL

IMMED. SWLY OF ROUTE 196, Androscoggin, ME

Built 1975 Load: 43.7 t ADT: 1,666

OLD COUNTY RD

Fair

Over: I 295 NB & SB

200 FT E OF RTE US 1, Cumberland, ME

Built 1985 Load: 43.7 t ADT: 1,610

I 95 SB

Fair

Over: RT 11/137 KENNEDY MEM DR

I-95 INTERCHANGE # 127, Kennebec, ME

Built 1960 Load: 43.7 t ADT: 13,100

AUGUSTA-ROCKLAND R

Fair

Over: W BRANCH SHEEPSCOT RIVER

0.3MI W TOWNLINE, Kennebec, ME

Built 1965 Load: 43.7 t ADT: 7,978

FRYE CROSSOVER RD

Fair

Over: SWIFT RIVER

0.1 MI W OF RTE 17, Oxford, ME

Built 1958 Load: 43.7 t ADT: 630

MAIN ST

Fair

Over: HARRINGTON RIVER

.7 MI W TOWN, Washington, ME

Built 1968 Load: 43.7 t ADT: 2,692

MAIN ST

Fair

Over: THATCHER BROOK

1 MI NW RTE 1, York, ME

Built 1930 Load: 43.7 t ADT: 2,440

WILSONS MILLS

Fair

Over: COLD BROOK

2.0 MI WLY RANGELEY T.L., Oxford, ME

Built 1962 Load: 43.7 t ADT: 402

FLAT MOUNTAIN RD

Fair

Over: DICKEY BROOK

3 MI SWLY JCT ROUTE 162, Aroostook, ME

Built 1921 Load: 43.7 t ADT: 516

MEMORIAL HWY

Fair

Over: MCRR

0.7 MI. SW JCT NORTH RD., Cumberland, ME

Built 1989 Load: 44.1 t ADT: 1,710

I 95 NB

Fair

Over: MOOSE BROOK

MILE 299.1/2.7 MI W JCT 1, Aroostook, ME

Built 1976 Load: 44.1 t ADT: 2,410

SHIN POND RD

Fair

Over: LOWER SHIN POND INLET

5.5 MI NW OF PATTEN TL, Penobscot, ME

Built 1937 Load: 44.1 t ADT: 502

TURNER ST

Fair

Over: WHITNEY BROOK

AT JCT WITH ROUTE 140, Oxford, ME

Built 1970 Load: 44.1 t ADT: 4,222

I 95 SB

Fair

Over: HEMLOCK STREAM

.6 MI S EDINBURG TL, Penobscot, ME

Built 1964 Load: 44.1 t ADT: 4,660

GRANITE ST

Fair

Over: M C RR

0.5 MI N JCT COUNTY RD, Cumberland, ME

Built 1999 Load: 44.4 t ADT: 1,440

SWETTS BRIDGE RD

Fair

Over: MIDDLE BR MOUSAM RIVR

0.8 MI NE OF JCT RTE 4, York, ME

Built 1940 Load: 44.4 t ADT: 352

BUZZELL RD

Fair

Over: COLDWATER BROOK

1.1 MI E WATERHOUSE RD, York, ME

Built 1978 Load: 44.4 t ADT: 420

I-95(SB)

Fair

Over: PRESUMPSCOT RIVER

0.107 mi W of Blackstrap, Cumberland, ME

Built 1956 Load: 44.4 t ADT: 17,050

BIDDEFORD RD

Fair

Over: LITTLEFIELD RIVER

1.0 MI E OF JCT RTE 4, York, ME

Built 1930 Load: 44.4 t ADT: 12,802

STATE ROUTE 46

Fair

Over: STUBBS BROOK

2.7 MI N OF JCT RTE US 1, Hancock, ME

Built 1938 Load: 44.4 t ADT: 1,263

RAZORVILLE RD

Fair

Over: JACKSON STR. (DAVIS STR.

1.5 MI E JCT 206, Knox, ME

Built 1947 Load: 44.4 t ADT: 340

ANDOVER RD

Fair

Over: ELLIS RIVER

75 FT N OF JCT RTE 5, Oxford, ME

Built 1961 Load: 44.4 t ADT: 402

FEDERAL RD

Fair

Over: Ossipee River

500 SW of jct route 100, York, ME

Built 2001 Load: 44.4 t ADT: 4,850

REDONNOT MILL RD

Fair

Over: PEMAQUID RIVER

.1 MI E RT 130, Lincoln, ME

Built 2019 Load: 44.7 t ADT: 20

ROUTE 1 BYP

Fair

Over: ROUTE 3 (BELMONT AV)

JCT OF RTES 1& 3, Waldo, ME

Built 1973 Load: 44.7 t ADT: 7,983

I 95 NB

Fair

Over: TIMONEY LAKE ROAD

1.7 MI NE OF OAKFIELD TL, Aroostook, ME

Built 1980 Load: 44.7 t ADT: 2,510

RIDGE RD

Fair

Over: HOUSTON BROOK

2.7 MI W CONCORD TL, Somerset, ME

Built 1967 Load: 44.7 t ADT: 379

HUDSON RD

Fair

Over: PUSHAW STREAM

1.7 MI SW OF HUDSON, Penobscot, ME

Built 1985 Load: 44.7 t ADT: 1,394

SANFORD RD

Fair

Over: MIDDLE BR MOUSAM RIVER

0.6 MI WLY OF ROUTE 111, York, ME

Built 1953 Load: 44.7 t ADT: 12,194

MAIN ST

Fair

Over: E BR SANDY STREAM

0.3 MI S OF SANDY BAY, Somerset, ME

Built 1955 Load: 44.7 t ADT: 1,480

PEQUAWKET TRL

Fair

Over: BREAKNECK BROOK

1.6 MI S OF HIRAM, Cumberland, ME

Built 1958 Load: 44.7 t ADT: 3,969

ACADIA HWY

Fair

Over: NARRAMISSIC RIVER

0.4 MI E JCT RTE 175, Hancock, ME

Built 1961 Load: 44.7 t ADT: 8,056

RIVER RD

Fair

Over: POOLER BROOK

1.2 MI N JCT 43, Somerset, ME

Built 1963 Load: 44.7 t ADT: 1,068

NEW DAM RD

Fair

Over: SALMON FALLS RIVER

0.4 MI WLY JCT RTE 236, York, ME

Built 1982 Load: 44.7 t ADT: 1,800

I 95 SB

Fair

Over: SMYRNA TOWN LINE RD

SMYRNA / LUDLOW T.L., Aroostook, ME

Built 1966 Load: 44.7 t ADT: 2,500

WATERFORD RD

Fair

Over: DUCK POND BROOK

1.5 MI WLY OF WATERFORD, Oxford, ME

Built 1967 Load: 44.7 t ADT: 372

I 295 NB

Fair

Over: PTRR

0.5 MI N TOWNLINE, Cumberland, ME

Built 1974 Load: 44.7 t ADT: 29,400

I 295 SB

Fair

Over: PTRR

0.5 MI N TOWNLINE, Cumberland, ME

Built 1974 Load: 44.7 t ADT: 32,110

HOLTS MILLS RD

Fair

Over: KENDUSKEAG STREAM

.1 MI S RT 94, Penobscot, ME

Built 1921 Load: 45.0 t ADT: 62

MESSENGERS BRIDGE

Fair

Over: LITTLE RIVER

3.5 MI NE JCT 9, York, ME

Built 1978 Load: 45.0 t ADT: 3,701

FERRY ST

Fair

Over: KENNEBEC RIVER

50 FT E OF JCT RTE 16, Somerset, ME

Built 1955 Load: 45.0 t ADT: 1,976

ROUTE 1

Fair

Over: MCRR (STATE RR)

0.5 MI W OF TOWNLINE, Sagadahoc, ME

Built 1957 Load: 45.0 t ADT: 17,042

MILL CREEK RD

Fair

Over: MILL STREAM

.2MI W OF RTE15 ON INV689, Penobscot, ME

Built 1982 Load: 45.0 t ADT: 177

NORTH RD

Fair

Over: SCHOODIC STREAM

305 NW OF MAXFIELE TL, Piscataquis, ME

Built 1970 Load: 45.0 t ADT: 144

LEWISTON RD

Fair

Over: INTERSTATE 295 NB&SB

JCT I-95 & RTE 196, Sagadahoc, ME

Built 1973 Load: 45.0 t ADT: 10,002

LEWISTON RD

Fair

Over: INTERSTATE 295 NB & SB

2.0 MI N GARDINER T.L., Kennebec, ME

Built 1973 Load: 45.0 t ADT: 4,211

I-495

Fair

Over: LAMBERT ST/FALMOUTH SPUR

0.195 mi N of Davis Farm, Cumberland, ME

Built 1956 Load: 45.4 t ADT: 5,770

MILLAY RD

Fair

Over: I-295 SOUTHBOUND

1.3 MI N OF JCT RTE 138, Sagadahoc, ME

Built 1976 Load: 45.4 t ADT: 431

Showing 1,051-1,100 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.