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

MOUNTAIN RD

Fair

Over: I-95

0.231 mi W of SR 100&26, Cumberland, ME

Built 1956 Load: 18.1 t ADT: 3,740

DEERING AV

Fair

Over: I-295 NB & SB + PTRR

.5 MI W US1, Cumberland, ME

Built 1971 Load: 18.1 t ADT: 8,051

COUNTY RD

Fair

Over: HUNTER BROOK

2.5 MI E OF LUDLOW TL, Aroostook, ME

Built 1918 Load: 18.5 t ADT: 1,480

N MAIN ST

Fair

Over: VALLEY BROOK

1 MI N JCT 4, Franklin, ME

Built 1951 Load: 18.8 t ADT: 1,092

MAIN RD

Fair

Over: MADAGASCAL STREAM

2 MI SE OF BURLINGTON, Penobscot, ME

Built 1948 Load: 18.8 t ADT: 436

RIVER RD

Fair

Over: OSSIPEE RIVER

0.2 MI N OF JCT RTE 25, York, ME

Built 1930 Load: 18.8 t ADT: 500

N BRIDGTON RD

Fair

Over: BEAR RIVER

0.6 MI N OF BRIDGTON, Oxford, ME

Built 1939 Load: 19.1 t ADT: 765

LAMBERT HILL RD

Fair

Over: VALLEY BROOK

.1 MI N JCT 145, Franklin, ME

Built 1946 Load: 19.1 t ADT: 1,049

INV 2100307 RD

Fair

Over: LITTLE NESOWADNEHUNK

.6 MI E T4 R11 TL, Piscataquis, ME

Built 1986 Load: 19.1 t ADT: 144

LANG HILL HWY

Fair

Over: MARSH STREAM

0.1 MI E OF JCT RTE 139, Waldo, ME

Built 1929 Load: 19.4 t ADT: 704

GREENFIELD RD

Fair

Over: OLAMAN STREAM

2.5 MI E TOWNLINE, Penobscot, ME

Built 1951 Load: 19.4 t ADT: 513

LONG RD

Fair

Over: LIMESTONE STREAM

0.5 MI ELY OF ROUTE 1A, Aroostook, ME

Built 1949 Load: 19.4 t ADT: 156

JACKSON RD

Fair

Over: N. BR. MARSH STREAM

1.8 MI NW OF ROUTE 139, Waldo, ME

Built 1955 Load: 19.4 t ADT: 186

BURNHAM RD

Fair

Over: HOLLAND BROOK

.2 MI W DOLE RIDGE RD, York, ME

Built 1965 Load: 19.8 t ADT: 840

ROUTE 1

Fair

Over: MONTSWEAG BROOK

ON TOWNLINE, Lincoln, ME

Built 1931 Load: 19.8 t ADT: 16,559

ANDREWS RD

Fair

Over: SALMON STREAM

.3 MI N RT 15, Piscataquis, ME

Built 1955 Load: 20.0 t ADT: 41

BUCKFIELD HILL RD

Fair

Over: E BRANCH SWIFT RIVER

0.2 MI N NO 6 RD, Oxford, ME

Built 1962 Load: 20.1 t ADT: 14

FOSS RD

Fair

Over: PENDEXTER BROOK

0.9 MI W OF RT 5, York, ME

Built 1970 Load: 20.1 t ADT: 430

CANADA RD

Fair

Over: DECKER BRK

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

Built 1929 Load: 20.1 t ADT: 2,270

BRIDGE ST

Fair

Over: KENNEBEC RIVER

0.2 MI E OF RTE US 201, Kennebec, ME

Built 1972 Load: 20.1 t ADT: 13,867

WIRE BRIDGE RD

Fair

Over: CARRABASSET RIVER

0.7 MI NE OF OLD RTE 27, Somerset, ME

Built 1886 Load: 20.1 t ADT: 74

VALLEY AV

Fair

Over: KENDUSKEAG STREAM

0.1 MI NW OF JCT 14TH ST, Penobscot, ME

Built 1946 Load: 20.1 t ADT: 2,218

JACKMAN RD

Fair

Over: MISERY STREAM

TOWNLINE, Somerset, ME

Built 1956 Load: 20.1 t ADT: 360

MAIN ST

Fair

Over: E BRANCH NEZINSCOTT

E OF WLY JCT 140 & 219, Oxford, ME

Built 1953 Load: 20.1 t ADT: 1,589

REED RD

Fair

Over: QUICK STREAM

0.6 MI E RTE 142, Franklin, ME

Built 2000 Load: 20.4 t ADT: 48

I 95 SB

Fair

Over: SEBASTICOOK RIVER

1 MI S TOWNLINE, Somerset, ME

Built 1964 Load: 20.4 t ADT: 8,970

STATION RD

Fair

Over: MILL STREAM

1.2 MI S JCT US2, Aroostook, ME

Built 1948 Load: 20.4 t ADT: 1,050

DUNCAN POND ROAD

Fair

Over: SOUTH BRANCH BROOK CREEK

23.8 KM NE JACKMAN ME, Somerset, ME

Built 2006 Load: 20.6 t ADT: 25

GRIFFITHS HEAD RD

Fair

Over: TIDAL

2.2 MT S RTE 127, Sagadahoc, ME

Built 1950 Load: 20.7 t ADT: 388

UNITY RD

Fair

Over: 15 MILE STREAM

1.1 MI W JCT 137, Kennebec, ME

Built 1928 Load: 20.7 t ADT: 3,112

DYER BROOK RD

Fair

Over: B & A RR

1.2 MI SE OF I95 U-PASS, Aroostook, ME

Built 1936 Load: 20.7 t ADT: 560

HOTEL DR

Fair

Over: KINGSBURY STREAM

100 FT S OF JCT RTE 16, Piscataquis, ME

Built 1941 Load: 20.7 t ADT: 72

LOWER DYER NECK

Fair

Over: DYER RIVER

0.1 MI N OF SHEEPSCOT RD, Lincoln, ME

Built 1988 Load: 20.7 t ADT: 120

BRIDGE RD

Fair

Over: PENOBSCOT RIVER

TOWNLINE, Penobscot, ME

Built 1950 Load: 20.7 t ADT: 905

WILCOX RD

Fair

Over: DAVIS STREAM

0.7 MI WEST JCT US 1, Aroostook, ME

Built 1991 Load: 20.7 t ADT: 86

RANGE E RD

Fair

Over: PENDEXTER BROOK

1.5 MI SW OF JCT RTE 11, York, ME

Built 1927 Load: 20.7 t ADT: 989

SOUTH ST

Fair

Over: STROUDWATER RIVER

0.2 MI N OF JCT ROUTE 22, Cumberland, ME

Built 1951 Load: 20.7 t ADT: 13,270

DORSEY RD

Fair

Over: PATTEE BROOK

0.2 MI S OF JCT RTE 167, Aroostook, ME

Built 1960 Load: 20.7 t ADT: 480

LONG FALLS DAM RD

Fair

Over: BOG BK

.1MI N CARRABASSETTVAL TL, Somerset, ME

Built 1949 Load: 21.1 t ADT: 145

US 1

Fair

Over: NONESUCH RIVER

.3 MI S TOWNLINE, Cumberland, ME

Built 1986 Load: 21.1 t ADT: 11,598

PROSPECT AV

Fair

Over: SWAIN (BEAN) BROOK

.1 MI S OF JCT RTE 108, Oxford, ME

Built 1914 Load: 21.1 t ADT: 9,742

COUNTY RD

Fair

Over: OTTER STREAM

2.3 MI E OF JCT RTE 2, Penobscot, ME

Built 1949 Load: 21.1 t ADT: 1,167

NORTH RD

Fair

Over: SKINNER BROOK

1.4*MI*E*JCT*7, Penobscot, ME

Built 1968 Load: 21.1 t ADT: 344

PATRICK TOWN RD

Fair

Over: SHEEPSCOT RIVER

1.4 MI E OF WINDSOR TL, Lincoln, ME

Built 1948 Load: 21.1 t ADT: 623

MEMORIAL DR

Fair

Over: KENNEBEC RIVER + MCRR

.2 MI W 9, Kennebec, ME

Built 1949 Load: 21.1 t ADT: 20,252

US 1

Fair

Over: DENNYS RIVER

1MI SO #86, Washington, ME

Built 1955 Load: 21.1 t ADT: 1,694

COUNTY WOODS RD

Fair

Over: E BR SEBASTICOOK RIVER

1.2 MI E OF JCT RTE 7&11, Penobscot, ME

Built 1947 Load: 21.4 t ADT: 950

TROY RD

Fair

Over: SEBASTICOOK RIVER

300 FT E OF RTE 11 & 100, Waldo, ME

Built 1950 Load: 21.4 t ADT: 1,343

THIBODEAU RD

Fair

Over: CARIBOU STREAM

0.4 MI. S. RTE 228, Aroostook, ME

Built 1993 Load: 21.7 t ADT: 140

MIDDLE RD

Fair

Over: SOUTH RIVER

.3 MI N FRED LEAVITT RD, York, ME

Built 1960 Load: 21.7 t ADT: 60

Showing 51-100 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.