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

I-95(SB)

Fair

Over: MOUSAM RIVER

0.564 mi W of SR 35, York, ME

Built 1948 Load: 36.6 t ADT: 25,680

I-95(SB)

Fair

Over: KENNEBUNK RIVER

0.427 mi E of Downing Rd, York, ME

Built 1948 Load: 36.6 t ADT: 27,380

AUBURN RD

Fair

Over: MARTIN STREAM

2.5 MI N OF JCT RTE 117, Androscoggin, ME

Built 1991 Load: 36.6 t ADT: 12,535

MAIN ST

Fair

Over: STONEY BROOK

.2 MI E 26, Oxford, ME

Built 1928 Load: 36.6 t ADT: 3,147

BUCKS MILLS RD

Fair

Over: STUBBS BROOK

3.6 MI N JCT US1, Hancock, ME

Built 1937 Load: 36.6 t ADT: 671

WESTERN RD

Fair

Over: BACK RIVER

1.8 MI SE JCT RTE 235, Knox, ME

Built 1941 Load: 36.6 t ADT: 2,180

PIERCE RD

Fair

Over: PRESTILE STREAM

0.6 MI E JCT HOULTON ROAD, Aroostook, ME

Built 1957 Load: 36.6 t ADT: 250

CARRABASSETT DR

Fair

Over: CARRABASSETT RIVER

10.2 MI N KINGFIELD TL, Franklin, ME

Built 1953 Load: 36.6 t ADT: 2,445

LEIGHTON RD

Fair

Over: BOND BROOK

1.3 MI S JCT 8-11-27, Kennebec, ME

Built 1959 Load: 36.6 t ADT: 7,465

UNNAMED 2457

Fair

Over: I-95 NB & SB

300 FT SW OF ODLIN RD, Penobscot, ME

Built 1962 Load: 36.6 t ADT: 342

WALDO AV

Fair

Over: US 1 & 3

.5 MI E 3, Waldo, ME

Built 1963 Load: 36.6 t ADT: 5,516

SACO ST

Fair

Over: STROUDWATER RIVER

0.6 MI S JCT RTE 25, Cumberland, ME

Built 1966 Load: 36.6 t ADT: 8,230

I 295 NB

Fair

Over: STATE ROUTE 703

0.5 MI N RTE 1 CONN, Cumberland, ME

Built 1971 Load: 36.6 t ADT: 9,830

HUNTS CORNER RD

Fair

Over: SWETT BROOK

3.5 MI N RTE 118, Oxford, ME

Built 1950 Load: 36.9 t ADT: 618

BACK RD

Fair

Over: LITTLEFIELD RIVER

0.2 MI N JCT RTE 111, York, ME

Built 2010 Load: 36.9 t ADT: 319

I95 NORTHBOUND

Fair

Over: E BR MATTAWAMKEAG RIVER

0.5 MI N TOWNLINE, Aroostook, ME

Built 1966 Load: 36.9 t ADT: 2,510

LINCOLNVILLE AV

Fair

Over: LITTLE RIVER

1.1 MI S US1, Waldo, ME

Built 1955 Load: 36.9 t ADT: 3,173

PORTLAND RD

Fair

Over: PLEASANT RIVER

1.2 MI S OF JCT ROUTE 115, Cumberland, ME

Built 1922 Load: 36.9 t ADT: 6,340

S MAIN ST

Fair

Over: MICHAEL STREAM

2.8 MI N TOWNLINE, Somerset, ME

Built 1952 Load: 36.9 t ADT: 3,630

HARPSWELL ISLANDS

Fair

Over: TIDAL PASSAGE

GURNET STRAIT, Cumberland, ME

Built 1982 Load: 36.9 t ADT: 7,038

MAIN ST

Fair

Over: MCRR SPRINGFIELD TERM.

0.2 MI S TOWNLINE, Somerset, ME

Built 1939 Load: 36.9 t ADT: 1,717

BEAULIEU RD

Fair

Over: BLACK BROOK

3.1 MI E OF US1, Aroostook, ME

Built 1955 Load: 36.9 t ADT: 380

JORDAN RD

Fair

Over: LITTLE ANDRO RIVER

.1 MI S JCT 121, Androscoggin, ME

Built 1972 Load: 36.9 t ADT: 1,161

BEACHWOOD ST

Fair

Over: OYSTER RIVER

1.2 MI S OF JCT RTE 90, Knox, ME

Built 1971 Load: 36.9 t ADT: 1,255

Isleboro Ferry Sl.

Fair

Over: Gilkey Harbor

End of SH 214, Waldo, ME

Built 2009 Load: 36.9 t ADT: 742

INV 1301439 RD

Fair

Over: Fox Islands Thoroughfare

Atlantic Ocean, Knox, ME

Built 2012 Load: 36.9 t ADT: 776

I-95

Fair

Over: POTTERS BROOK

0.129 mi E of Stevenstown, Kennebec, ME

Built 1956 Load: 37.0 t ADT: 4,970

WASHINGTON ST

Fair

Over: MOUSAM RIVER

0.2 MI E JCT ROUTE 4A, York, ME

Built 1920 Load: 37.3 t ADT: 8,420

I-95 (SB)

Fair

Over: B&MRR

0.439 mi W of SR9&109, York, ME

Built 1948 Load: 37.3 t ADT: 24,900

I 295 SB

Fair

Over: RIVER RD

1.5MI W US 201, Sagadahoc, ME

Built 1971 Load: 37.3 t ADT: 15,640

DURHAM RD

Fair

Over: MILL POND STREAM

3MI N I-95, Cumberland, ME

Built 1931 Load: 37.3 t ADT: 4,921

E MAIN ST

Fair

Over: PISCATAQUIS RIVER

0.1 MI W OF JCT RTE 7, Piscataquis, ME

Built 1912 Load: 37.3 t ADT: 10,496

N MAIN ST

Fair

Over: CARRABASSET RIVER

200 FT S JCT RTE 16, Somerset, ME

Built 1932 Load: 37.3 t ADT: 4,581

CORINNA RD

Fair

Over: INDIAN STREAM/ PD OUTLET

0.1MI E OF JCT RTE 152, Somerset, ME

Built 1941 Load: 37.3 t ADT: 1,737

NORTH ST

Fair

Over: SAINT CROIX RIVER

.2 MI NO US #1, Washington, ME

Built 1967 Load: 37.3 t ADT: 1,016

HIGGINSVILLE RD

Fair

Over: KENDUSKEAG STREAM

200 FT S OF GRANT ROAD, Penobscot, ME

Built 1950 Load: 37.3 t ADT: 390

LITTLE RIVER RD

Fair

Over: LITTLE RIVER

1.9 MI S OF RTE 11 & 202, York, ME

Built 1994 Load: 37.3 t ADT: 1,812

I 395 EB

Fair

Over: ROUTES US 1A & 9

I395 INTERCHANGE #3, Penobscot, ME

Built 1986 Load: 37.3 t ADT: 13,290

TRAFTON RD

Fair

Over: INTERSTATE 95 NB & SB

OVER 95 0.3 MI N OF TL, Kennebec, ME

Built 1959 Load: 37.3 t ADT: 292

SWIFT RIVER RD

Fair

Over: SWIFT RIVER

2 MI NLY ROXBURY T.L., Oxford, ME

Built 1959 Load: 37.3 t ADT: 578

ROCHESTER ST

Fair

Over: SALMON FALLS RIVER

1.3 MI NW OF JCT RTE 9, York, ME

Built 1969 Load: 37.3 t ADT: 4,280

I 295 NB

Fair

Over: RIVER RD

1.5 MI W US 201, Sagadahoc, ME

Built 1971 Load: 37.3 t ADT: 16,310

I-95

Fair

Over: DENNETT ROAD

.5 MI N STATELINE, York, ME

Built 1971 Load: 37.3 t ADT: 40,420

POST RD

Fair

Over: INTERSTATE 295 NB & SB

2.3 MI N JCT MAIN ST, Sagadahoc, ME

Built 1976 Load: 37.3 t ADT: 853

WELCH ST

Fair

Over: Casco Bay/Atlantic Ocean

Forest City Landing, Cumberland, ME

Built 1993 Load: 37.3 t ADT: 11

TOBIN FLAT RD

Fair

Over: WILSON STREAM

200 FT SO RT 156 1.0 E TL, Franklin, ME

Built 1998 Load: 37.6 t ADT: 56

I 195 EB

Fair

Over: INDUSTRIAL PARK ROAD

1 MI NW OF US1 UNDER, York, ME

Built 1983 Load: 37.6 t ADT: 15,210

I 195 WB

Fair

Over: INDUSTRIAL PARK ROAD

1 MI NW OF US1 UNDER, York, ME

Built 1982 Load: 37.6 t ADT: 15,400

I 95 SB

Fair

Over: Quarry RD

0.2 MI S JCT RTE 104, Kennebec, ME

Built 1960 Load: 37.6 t ADT: 17,030

FLAT RD

Fair

Over: EAST BR PLEASANT RIVER

2.6 MI S RTE 2, Oxford, ME

Built 1984 Load: 37.6 t ADT: 227

Showing 751-800 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.