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

LITTLEHALE RD

Fair

Over: MAGALLOWAY RIVER

.3 MI WLY OF RTE 16, Oxford, ME

Built 1901 Load: 0.0 t ADT: 42

CASTLE HILL RD

Fair

Over: AROOSTOOK RIVER

0.2 MI S OF JCT RTE 164, Aroostook, ME

Built 1971 Load: 0.0 t ADT: 1,320

JO MARY RD

Fair

Over: POLLYWOG STREAM

26 miles from Maine 11 on, Piscataquis, ME

Built 1999 Load: 0.0 t ADT: 2

EXETER RD

Fair

Over: KENDUSKEAG STREAM

50 SW OF ROUTE 94, Penobscot, ME

Built 1964 Load: 3.5 t ADT: 697

WILTON RD

Fair

Over: TEMPLE STREAM

0.3 MI S JCT OF RTE 43, Franklin, ME

Built 1929 Load: 3.9 t ADT: 19,162

COUNTY RD

Fair

Over: EAST STREAM

1.0 MI E TOWNLINE, Washington, ME

Built 1919 Load: 4.2 t ADT: 2,211

COVERED BRIDGE R

Fair

Over: PRESUMPSCOT RIVER

TOWNLINE, Cumberland, ME

Built 1976 Load: 5.4 t ADT: 262

FROG ALY

Fair

Over: OLD COURSE OF SACO RIVER

3 MI N JCT RTE US 302, Oxford, ME

Built 1857 Load: 6.2 t ADT: 50

ANDREWS AVE

Fair

Over: CASCO BAY

.2 MI E JCT US 1, Cumberland, ME

Built 1955 Load: 6.8 t ADT: 1,129

BARRET RD

Fair

Over: YOUNG BROOK

.7 MI E BLAINE RD, Aroostook, ME

Built 1982 Load: 8.1 t ADT: 10

ROAD "F"

Fair

Over: HALE BROOK

1KM S OF CAN FALLS LAKE, Somerset, ME

Built 1990 Load: 8.1 t ADT: 2

SMYRNA ST

Fair

Over: CAPTAIN AMBROSE BEAR STR

0.2 MI W OF JCT US1, Aroostook, ME

Built 1929 Load: 10.0 t ADT: 2,800

DEPOT ST

Fair

Over: WILSON STREAM

0.6 MI W JCT US 2, Franklin, ME

Built 1928 Load: 11.0 t ADT: 2,942

SCHOOL ST

Fair

Over: HOUGHTON BROOK

0.1MI SE RTE 142, Franklin, ME

Built 1926 Load: 11.3 t ADT: 948

SOMERVILLE RD

Fair

Over: SHEEPSCOT RIVER

0.1 MI S OF ROUTE 105, Lincoln, ME

Built 1953 Load: 11.3 t ADT: 228

COVERED BRIDGE

Fair

Over: PISCATAQUIS RIVER

100 FT S OF RTE 6 15 &16, Piscataquis, ME

Built 1990 Load: 11.7 t ADT: 31

W MINOT RD

Fair

Over: BOG BROOK

0.1 MI N OF JCT RTE 119, Androscoggin, ME

Built 1953 Load: 11.7 t ADT: 1,568

S LAGRANGE RD

Fair

Over: DEAD STREAM

1.2 MI W RT 16 ON INV 540, Penobscot, ME

Built 1982 Load: 12.0 t ADT: 103

COVERED BRIDGE RD

Fair

Over: ELLIS RIVER

.2 MI E JCT 5, Oxford, ME

Built 1868 Load: 12.0 t ADT: 259

WATERVILLE RD

Fair

Over: PASSAGASSAWAUKEAG RV

2.2 MI N OF JCT US 1, Waldo, ME

Built 1932 Load: 12.0 t ADT: 4,612

COUNTY RD

Fair

Over: COCKRANE LAKE OUTLET

0.5 MI E OF LUDLOW TL, Aroostook, ME

Built 1922 Load: 12.3 t ADT: 1,400

STATE PARK RD

Fair

Over: CROOKED RIVER

TOWNLINE, Cumberland, ME

Built 1937 Load: 12.3 t ADT: 1,367

COVERED BRIDGE RD

Fair

Over: KENDUSKEAG STREAM

0.3 MI S OF JCT GRAND RD, Penobscot, ME

Built 1876 Load: 13.0 t ADT: 72

LITTLE DEER ISLE R

Fair

Over: EGGEMOGGIN REACH

1 MI S 15&175, Hancock, ME

Built 1939 Load: 13.2 t ADT: 4,800

SWAN LAKE AV

Fair

Over: MARSH STREAM

.8 MI N TOWNLINE, Waldo, ME

Built 1948 Load: 13.3 t ADT: 1,209

CHESTNUT ST

Fair

Over: MAIN CANAL

400 FT W RTE #196, Androscoggin, ME

Built 1927 Load: 13.3 t ADT: 4,110

AIRPORT RD

Fair

Over: WILSON STREAM

200 FT NE OF JCT RTE 150, Piscataquis, ME

Built 1937 Load: 13.9 t ADT: 31

RYEFIELD BRIDGE RD

Fair

Over: CROOKED RIVER

0.4 MI E OF JCT UPTON RD, Cumberland, ME

Built 1912 Load: 14.6 t ADT: 240

BARROWS FALLS RD

Fair

Over: PISCATAQUIS RIVER

1 MI N TOWNLINE, Piscataquis, ME

Built 1939 Load: 14.9 t ADT: 154

MAIN RD

Fair

Over: MILL BROOK

100 FT W OF JCT RTE 46, Penobscot, ME

Built 1922 Load: 14.9 t ADT: 4,216

CANADA RD

Fair

Over: WHITCOMB BROOK

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

Built 1929 Load: 15.2 t ADT: 2,270

NEW GLOUCESTER RD

Fair

Over: ROYAL RIVER

1.7 MI N JCT 115, Cumberland, ME

Built 1926 Load: 15.2 t ADT: 1,280

LOMBARD HILL RD

Fair

Over: HOSAC BROOK

.1 MI E ROHR RD, York, ME

Built 2010 Load: 15.6 t ADT: 50

UNION ST

Fair

Over: GRIFFIN BROOK

0.2 MI SE OF GRIFFIN RD, Penobscot, ME

Built 1956 Load: 15.6 t ADT: 16,810

MAIN ST

Fair

Over: FISH STREAM

0.1 MI S OF JCT RTE 159, Penobscot, ME

Built 1934 Load: 16.2 t ADT: 2,276

MAIN ST

Fair

Over: CASCADE STR

200 FEET E RT 4, Franklin, ME

Built 1934 Load: 16.5 t ADT: 26

CARTHAGE RD

Fair

Over: WEBB RIVER

2.0 MI N OF DIXFIELD, Franklin, ME

Built 1931 Load: 16.5 t ADT: 1,228

DAVIS ST

Fair

Over: E BRANCH PLEASANT RIVER

7.4 MI N OF MILO, Piscataquis, ME

Built 1957 Load: 16.5 t ADT: 707

MILL RD

Fair

Over: BACK RIVER (PARSONS CRK)

1.1 MI W OF JCT RTE 27, Lincoln, ME

Built 1960 Load: 16.8 t ADT: 210

CROWLEY RD

Fair

Over: SABATTUS RIVER

1.2 MI W OF JCT RTE 9, Androscoggin, ME

Built 1934 Load: 16.8 t ADT: 3,970

ELLIOTSVILLE RD

Fair

Over: WILSON STREAM

1 MI NO TOWNLINE, Piscataquis, ME

Built 1926 Load: 16.8 t ADT: 92

LOWER MILLS RD

Fair

Over: MILL STREAM

75 FT W OF E MADISON ROAD, Somerset, ME

Built 1945 Load: 16.9 t ADT: 287

I 95

Fair

Over: PISCATAQUA RIVER RTE 103

MAINE-NEW HAMPSHIRE SL, York, ME

Built 1971 Load: 16.9 t ADT: 40,420

POORS MILL RD

Fair

Over: PASSAGASSAWAUKEAG RIVER

0.7 MI W OFJCT SHEPARD RD, Waldo, ME

Built 1955 Load: 17.2 t ADT: 988

GOODSPEED STREET

Fair

Over: WILSON STREAM

MAIN & GOODSPEED STREET, Franklin, ME

Built 1950 Load: 17.2 t

INDIAN RIVER RD

Fair

Over: INDIAN RIVER

6.5 MI SO US 1, Washington, ME

Built 1921 Load: 17.5 t ADT: 2,051

KATIE CROTCH RD

Fair

Over: GILMAN STREAM

0.4 MI NELY OF RTE 146, Somerset, ME

Built 1936 Load: 17.5 t ADT: 243

GOULDS RIDGE RD

Fair

Over: PASSADUMKEAG RIVER

2.5 MI N TOWNLINE, Penobscot, ME

Built 1938 Load: 17.5 t ADT: 233

EVANS NOTCH RD

Fair

Over: EVANS BROOK

2.3 MI S OF GILEAD, Oxford, ME

Built 1938 Load: 17.5 t ADT: 191

WOODMAN HILL RD

Fair

Over: BOG BROOK

0.1 MI W OF JCT RTE 124, Androscoggin, ME

Built 1954 Load: 17.8 t ADT: 4,024

Showing 1-50 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.