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

NORTH AV

Poor

Over: W BR WESSERUNSETT STREAM

.3 MI S TOWNLINE, Somerset, ME

Built 1966 Load: 42.8 t ADT: 3,038

EMERYS BRIDGE RD

Poor

Over: GREAT WORKS RIVER

0.2 MI E AGAMENTICUS RD, York, ME

Built 1891 Load: 43.1 t ADT: 1,170

WEED RD

Poor

Over: SANDY STREAM

MINOR DISTANCE E OF UNITY, Waldo, ME

Built 1928 Load: 43.4 t ADT: 28

CHOATE RD

Poor

Over: W BR SHEEPSCOT RIVER

0.7 MI E RT 32, Kennebec, ME

Built 1962 Load: 43.7 t ADT: 206

WOODLAND CENTER RD

Poor

Over: CARIBOU STREAM

0.8 MI W OF CARIBOU, Aroostook, ME

Built 1921 Load: 43.7 t ADT: 1,170

NORTH ST

Poor

Over: DAVEE BROOK

0.5 MI N OF JCT RTE 6, Piscataquis, ME

Built 1940 Load: 44.1 t ADT: 1,035

RIVER ST

Poor

Over: MILL YARD

0.1 MI N PORTLAND ST, Oxford, ME

Built 1913 Load: 44.1 t ADT: 310

N HOWLAND RD

Poor

Over: MILE BROOK

2 MI N #155, Penobscot, ME

Built 1977 Load: 44.7 t ADT: 584

MAIN ST

Poor

Over: SEBEC RIVER

500 SW OF JCT RTE 11, Piscataquis, ME

Built 1915 Load: 45.0 t ADT: 6,037

ROUTE 1

Poor

Over: TUNK STREAM

1.5 MI E TOWNLINE, Washington, ME

Built 1962 Load: 45.0 t ADT: 3,819

RIVER RD

Poor

Over: CARRABASSETT STREAM

0.2 MI N OF JCT RTE 23, Kennebec, ME

Built 1930 Load: 45.4 t ADT: 1,331

US 201

Poor

Over: KELLY BROOK

3.5 MI N CARATUNK TL, Somerset, ME

Built 1952 Load: 46.0 t ADT: 2,300

SPRING ST

Poor

Over: STROUDWATER RIVER

1.2 MI S JCT RTE 25, Cumberland, ME

Built 1916 Load: 46.7 t ADT: 11,740

OXBOW RD

Poor

Over: INTERSTATE 95 NB & SB

0.1 MI W TOWNLINE, Somerset, ME

Built 1963 Load: 46.7 t ADT: 10,232

AUGUSTA RD

Poor

Over: CATHANCE RIVER

1.4 MI NLY JCT RTE 196, Sagadahoc, ME

Built 1973 Load: 46.7 t ADT: 4,672

ROOSEVELT TRL

Poor

Over: PLEASANT RIVER

0.3 MI NW OF RTES 4&202, Cumberland, ME

Built 1989 Load: 47.3 t ADT: 13,750

IRR BIA RTE 15AR

Poor

Over: GULG STREAM

24KM W OF JACKMAN, Franklin, ME

Built 2000 Load: 47.3 t ADT: 5

DESERT RD

Poor

Over: I 295 NB & SB

INTERCHAGE 20, Cumberland, ME

Built 1957 Load: 47.6 t ADT: 9,251

I 95 SB

Poor

Over: STILLWATER AVENUE

0.8 MI N JCT RTE 15, Penobscot, ME

Built 1960 Load: 48.3 t ADT: 25,150

GOODWIN RD

Poor

Over: WEBB RIVER

0.3 MI SE OF JCT RTE 142, Franklin, ME

Built 1987 Load: 48.6 t ADT: 153

STATION RD

Poor

Over: MILL STREAM

4.7 MI NE RTE 1, Washington, ME

Built 1948 Load: 48.9 t ADT: 84

PAYSON RD

Poor

Over: MILL STREAM

.3 MI W TOWNLINE, Knox, ME

Built 1929 Load: 49.2 t ADT: 200

RANGELEY RD

Poor

Over: PHILLIPS BROOK

.5 MI NO TOWNLINE, Franklin, ME

Built 1982 Load: 51.5 t ADT: 758

LUDLOW RD

Poor

Over: MOOSE BROOK

0.5 MI W OF HOULTON TL, Aroostook, ME

Built 1949 Load: 51.8 t ADT: 420

TAYLOR HILL RD

Poor

Over: LEMON STREAM

200 FT W RTE 27, Franklin, ME

Built 1985 Load: 52.8 t ADT: 176

FOUR MILE SQUARE R

Poor

Over: HILTON BROOK

200 FT N JCT RTE 234, Somerset, ME

Built 1998 Load: 53.1 t ADT: 67

HOWARD RD

Poor

Over: W BR CARRABASSET RIVER

0.5 MI N JCT RTE 142, Franklin, ME

Built 1974 Load: 53.5 t ADT: 101

MAIN ST

Poor

Over: SEBEC RIVER

200 SW OF JCT RTE11, Piscataquis, ME

Built 1915 Load: 53.5 t ADT: 6,037

SALEM RD

Poor

Over: SANDY RIVER

1.0 MI NLY JCT RTE 149, Franklin, ME

Built 1928 Load: 54.1 t ADT: 1,008

LAST ROUND UP RD

Poor

Over: LITTLE ALDER BROOK

.5MI W LONG FALLS DAM RD, Somerset, ME

Built 1988 Load: 54.8 t ADT: 35

PULLEN RD

Poor

Over: KENDUSKEAG STREAM

.4 MI S RT 94, Penobscot, ME

Built 2012 Load: 55.7 t ADT: 154

ALFRED RD

Poor

Over: MOUSAM RIVER

0.5 MI NE JCT 4A & 109, York, ME

Built 1958 Load: 56.1 t ADT: 14,260

I 95 NB

Poor

Over: N MAIN ST(MADAWASKA RD)

.5 MI SO TOWNLINE, Somerset, ME

Built 1964 Load: 56.4 t ADT: 8,120

SOUTHERN BAY RD

Poor

Over: WINSLOW STREAM

0.1 MI N JCT RTE 177, Hancock, ME

Built 1936 Load: 57.7 t ADT: 2,051

STEVENS POND RD

Poor

Over: ST. GEORGE RIVER

1.3 MI S OF JCT RTE 220, Waldo, ME

Built 1939 Load: 61.6 t ADT: 604

STATE ST

Poor

Over: KENDUSKEAG STREAM

CENTER OF CITY, Penobscot, ME

Built 1976 Load: 62.2 t ADT: 8,231

CASTONGUAY RD

Poor

Over: VIOLETTE BROOK

1.1 MI NW JCT US 1, Aroostook, ME

Built 1958 Load: 62.9 t ADT: 380

TANNERY ST

Poor

Over: WHITNEY BROOK

0.2 MI E OF JCT US 1, Aroostook, ME

Built 1960 Load: 64.5 t ADT: 100

HOWE HILL RD

Poor

Over: ALDER RIVER

200 FT S OF JCT RTE 26, Oxford, ME

Built 1980 Load: 64.5 t ADT: 991

WILEY RD

Poor

Over: MEADOW BROOK

0.3 MI N RT 118, Oxford, ME

Built 1981 Load: 64.5 t ADT: 206

WEBB RIDGE RD

Poor

Over: INDIAN STREAM

0.4 MI E OF JCT RTE 43, Somerset, ME

Built 1930 Load: 64.5 t ADT: 160

GREEN VALLEY RD

Poor

Over: MAIN STREAM

0.3 MI NW OLD COUNTY ROAD, Waldo, ME

Built 1977 Load: 64.5 t ADT: 473

HAMLIN RD

Poor

Over: MARTIN BROOK

2.8 MI NW OF CASWELL, Aroostook, ME

Built 1955 Load: 64.5 t ADT: 580

BURNHAM HILL RD

Poor

Over: SHEEPSCOT RIVER

0.9 MI W HERB JACKSON RD, Waldo, ME

Built 1965 Load: 64.5 t ADT: 171

NORWAY RD

Poor

Over: WOODSUM RIVER

100 N JCT MAPLE RIDGE RD, Cumberland, ME

Built 1979 Load: 64.5 t ADT: 3,606

LAKE ROAD

Poor

Over: BLACK STREAM (OVERFLOW)

1.4 MI W RT 222, Penobscot, ME

Built 1986 Load: 64.5 t ADT: 677

AUBURN RD

Poor

Over: MARTIN STREAM

0.1 MI S OF JCT RTE 219, Androscoggin, ME

Built 1970 Load: 64.5 t ADT: 9,883

AVERILL RD

Poor

Over: MATTAGODUS STREAM

0.1 MI NE OF SPRINGFIELD, Penobscot, ME

Built 1948 Load: 64.5 t ADT: 390

BEAR POND RD

Poor

Over: MARTIN STREAM

0.1 MI W OF JCT RTE 4, Androscoggin, ME

Built 1952 Load: 64.5 t ADT: 1,949

POND RD

Poor

Over: MOLUNKUS STREAM

1 MI SW OF JCT US 2, Aroostook, ME

Built 1981 Load: 64.5 t ADT: 70

Showing 2,451-2,500 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.