County profile · official public datasets

York County, ME

236 public highway bridges tracked in the FHWA National Bridge Inventory: 32.6% rated Good, 58.1% Fair, 9.3% Poor.

236
Public bridges
32.6%
Good condition
9.3%
Poor condition

The verdict

According to the Federal Highway Administration's 2024 National Bridge Inventory.

York County pairs a top-10% lowest Poor-condition share among rated counties in the state with a newer average build year than the state inventory.

Top 6%
lowest Poor share in state
9.3%
Poor-condition share
236
public highway bridges
1976
avg year built

Poor is an FHWA condition category from the lowest applicable component rating (4 or below), not a live crossing-safety or closure decision. Rankings cover counties with at least five public highway bridges.

York County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, York County ranks #1 of 16 Maine counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 9.3%). York County, Maine contains 236 public highway bridges. Roughly 32.6% are rated “Good,” 58.1% “Fair,” and 9.3% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

Total bridges

236

Public highway bridges in York County

Good condition

32.6%

77 of 236 rated 7-9

Fair condition

58.1%

137 of 236 rated 5-6

Poor condition

9.3%

22 of 236 rated 4 or below

In-state Poor-share rank

#1 of 16

Among Maine counties with 5+ bridges, lower share ranks better

Condition distribution

Share of 236 NBI-tracked bridges by lowest applicable component rating.

Good
32.6% (77)
Fair
58.1% (137)
Poor
9.3% (22)

York County's Poor-condition bridges carry 67,665 vehicle crossings a day

That is 4.2% of the county's reported daily bridge traffic on 9.3% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 3,076 crossings a day against 5,814 for a Good-condition one. A Poor rating is a condition category, not a closure or a live safety judgement; it means the lowest applicable component rating is 4 or below.

Computed over the 236 of 236 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

45.3% of York County's bridges have passed the 50-year mark

107 of the 236 bridges with a recorded construction year were built in 1974 or earlier. Age alone is not a defect: a well-maintained older bridge can rate Good, and 32.6% of this county's inventory does. Even so, this older cohort is the population from which future Poor ratings are drawn, which is why the age profile below matters alongside the condition split above.

Cutoff derives from the 2024 release year minus a 50-year design life. Source: FHWA National Bridge Inventory, 2024 release.

One structure carries 21.1% of the county's Poor-condition bridge traffic

ALFRED RD over MOUSAM RIVER, built 1958, carries 14,260 vehicles a day, the most of any Poor-rated structure here. The county's Poor-condition exposure is concentrated rather than evenly spread, so the 22-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 67,665 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When York County's bridges were built

236 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 2000s, when 38 of the county's bridges still in the inventory were built, which is 16.1% of those with a recorded year. That cohort is now 15 to 24 years old in the 2024 inventory. Its average build year is 1976, 6 years newer than the Maine average of 1970.

Source FHWA National Bridge Inventory (year built) As of 2024 NBI release

How York County compares with Maine's closest counties by inventory size

The 5 Maine counties nearest York County in number of bridges, with their condition splits. Its 9.3% Poor share is the 1st-lowest of these 6. Its average build year of 1976 against a peer-group mean of 1968 is 8 years newer.

Showing the 5 closest of 15 Maine counties eligible for comparison.

Bridge inventory size and condition shares for York County and the 5 Maine counties closest to it in inventory size
County Bridges Poor
Penobscot County 301 17.9%
Oxford County 252 17.5%
York County (this page) 236 9.3%
Aroostook County 229 10.5%
Kennebec County 188 13.3%
Somerset County 173 23.7%

Each share is of that county's own total tracked bridges; peers are the counties with 5 or more bridges whose inventory size is closest to York County's. Source: FHWA National Bridge Inventory, 2024 release.

Nationwide counties with similar inventory size or average build year

Two NBI-derived peer sets for York County, both outside Maine so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside ME (236 bridges here).

Similar average build year

Nearest mean year-built outside ME (1976 here).

Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.

Good-condition bridges (77)

STANLEY RD

Good

Over: MOUSAM RIVER

.2 MI N JCT 11, York, ME

Built 1978 Load: 6.2 t ADT: 1,600

OLD ALFRED RD

Good

Over: I-95

0.060 mi W of Skillings R, York, ME

Built 2003 Load: 27.9 t ADT: 614

PORTLAND RD

Good

Over: KENNEBUNK RIVER

1.1MI N JCT RTE 9A & 35, York, ME

Built 2016 Load: 27.9 t ADT: 15,672

CAT MOUSAM/RTE 99

Good

Over: I-95

0.178 mi W Coventry Woods, York, ME

Built 2002 Load: 28.5 t ADT: 2,890

SANFORD RD

Good

Over: B & M RR

1.3 MI W JCT 1, York, ME

Built 1988 Load: 28.5 t ADT: 15,290

BONNY EAGLE RD

Good

Over: SACO RIVER

STANDISH TOWNLINE, York, ME

Built 2013 Load: 29.8 t ADT: 3,600

BOOM ROAD

Good

Over: I-95

0.036 mi SE of Berry Rd, York, ME

Built 1995 Load: 30.1 t ADT: 1,070

SOUTH ST

Good

Over: I-95

0.138 mi W of Cathedral, York, ME

Built 2001 Load: 31.4 t ADT: 4,469

US 1 BYP

Good

Over: PISCATAQUA RIVER & ROADS

MAINE-NEW HAMPSHIRE SL, York, ME

Built 2018 Load: 32.4 t ADT: 14,040

KENNEBUNK RD

Good

Over: LITTLEFIELD RIVER

0.9 MI E RT 111, York, ME

Built 1999 Load: 32.7 t ADT: 954

YORK ST

Good

Over: LITTLE RIVER

1.8 MI NE JCT ROUTE 103, York, ME

Built 2000 Load: 32.7 t ADT: 4,300

ELM ST

Good

Over: SACO RIVER (W OR S CHAN)

0.2 MI WLY OF SACO T.L., York, ME

Built 1985 Load: 32.7 t ADT: 19,478

SKINNER MILL RD

Good

Over: MERRILAND RIVER

0.2 MI SW OF JCT RTE 9, York, ME

Built 2007 Load: 33.0 t ADT: 114

CAPTAIN THOMAS ROA

Good

Over: I-95

0.080 mi E Village Green, York, ME

Built 2000 Load: 33.4 t ADT: 433

BARTLETTS BRIDGE R

Good

Over: BARTLETT STR

.5 MI E TOWNLINE, York, ME

Built 2017 Load: 33.4 t ADT: 9,271

LOG CABIN RD

Good

Over: GOFFS MILL BRK

1.6 MI EAST JCT 1, York, ME

Built 2013 Load: 33.4 t ADT: 6,120

NORTH ST/RTE 112

Good

Over: I-95

0.274 mi W of Lund Rd, York, ME

Built 2002 Load: 33.7 t ADT: 12,094

BURNT MILL ROAD

Good

Over: I-95

0.084 mi SE of Lindsey Rd, York, ME

Built 1997 Load: 34.3 t ADT: 870

MILE RD

Good

Over: WEBHANNET RIVER

0.5 MI E JCT US1, York, ME

Built 2005 Load: 34.3 t ADT: 6,652

WHICHERS MILL RD

Good

Over: MOUSAM RIVER

1.6 MI NE OF JCT RTE 99, York, ME

Built 1985 Load: 35.0 t ADT: 2,530

US 1 BYP

Good

Over: DENNETT RD

RTE 1 BYPASS, York, ME

Built 2010 Load: 35.3 t ADT: 4,293

ST RTE 103

Good

Over: TIDAL ESTUARY

0.9 MI S JCT US 1A, York, ME

Built 2011 Load: 35.3 t ADT: 2,051

WHIPPLE RD

Good

Over: KITTERY POINT

1.1 MI ELY OF ROUTE 236, York, ME

Built 1998 Load: 36.0 t ADT: 4,270

BEACHWOOD AV

Good

Over: BATSON RIVER

0.4 MI W RTE 9, York, ME

Built 1994 Load: 36.3 t ADT: 780

PORTLAND AV

Good

Over: MILLIKEN BROOK

0.6 MI W TOWN LINE, York, ME

Built 1998 Load: 36.3 t ADT: 1,416

RIVER RD

Good

Over: SALMON FALLS RIVER

STATE LINE, York, ME

Built 1990 Load: 36.6 t ADT: 854

DENNETT RD

Good

Over: GREAT WORKS RIVER

.6 MI.E RTE 4, York, ME

Built 2002 Load: 36.6 t ADT: 100

MARKET ST

Good

Over: SACO RIVER (E OR N CHAN)

SACO / BIDDEFORD TL, York, ME

Built 2016 Load: 37.3 t ADT: 5,532

OLD ROUTE FOUR

Good

Over: B&M RAILROAD

.7 MI W RTE 4, York, ME

Built 1920 Load: 37.3 t ADT: 580

ONE ST

Good

Over: PISCATAQUA RIVER NH ROAD

MAINE-NEW HAMSPHIRE SL, York, ME

Built 2013 Load: 37.6 t ADT: 7,749

MAIN ST

Good

Over: SACO RIVER

.4 MI SLY JCT RTE 113, York, ME

Built 2014 Load: 37.6 t ADT: 1,880

LILAC LN

Good

Over: YORK RIVER

0.2 MI S US 1A, York, ME

Built 2010 Load: 37.9 t ADT: 2,483

BEACH ST

Good

Over: OGUNQUIT RIVER

.3 MI E JCT RTE US1, York, ME

Built 2003 Load: 37.9 t ADT: 2,044

NO DATA ENTERED

Good

Over: COOKS BROOK

NO DATA ENTERED, York, ME

Built 2012 Load: 37.9 t ADT: 50

DOCK SQ

Good

Over: KENNEBUNK RIVER

0.2 MI E OF JCT RTE 35, York, ME

Built 2017 Load: 38.2 t ADT: 9,490

POST RD

Good

Over: OGUNQUIT R.

2.3 MI N TOWNLINE, York, ME

Built 2015 Load: 38.6 t ADT: 10,799

CARD MILL RD

Good

Over: GREAT WORKS RIVER

.3 MI E LEBANON RD, York, ME

Built 2020 Load: 38.9 t ADT: 100

BIDDEFORD INTER.

Good

Over: I-95

0.238 mi NW of SR 111, York, ME

Built 2003 Load: 38.9 t ADT: 13,170

MAIN ST

Good

Over: SACO RIVER

HOLLIS - BUXTON TL, York, ME

Built 2016 Load: 39.2 t ADT: 4,031

SOKOKIS TRL S

Good

Over: LITTLE OSSIPEE RIVER

2.9 MI SE OF JCT RTE 160, York, ME

Built 2016 Load: 40.2 t ADT: 4,210

KINGS HWY

Good

Over: PERKINS BROOK

0.2 MI N KINGS HWAY GRB, York, ME

Built 2000 Load: 40.8 t ADT: 761

ONE ST

Good

Over: PISCATAQUA RIVER

ALPPR. SLY OF BADGER IS, York, ME

Built 2013 Load: 40.8 t ADT: 9,730

SOUTH ST

Good

Over: SWAN POND BROOK

1.0 MO W OF TPKE OVERPASS, York, ME

Built 2000 Load: 41.5 t ADT: 3,840

US 1

Good

Over: YORK RIVER

.8 MI N TOWNLINE, York, ME

Built 2004 Load: 41.8 t ADT: 9,400

BIRCH HILL RD

Good

Over: YORK RIVER

0.5 MI N BEECH RIDGE RD, York, ME

Built 2004 Load: 43.1 t ADT: 1,420

MAIN ST

Good

Over: JOSIAS*RIVER

.5 MI NO TOWNLINE, York, ME

Built 2015 Load: 43.4 t ADT: 7,103

GREAT HILL RD

Good

Over: GREAT WORKS RIVER

.5 MI E HOOPER SANDS RD, York, ME

Built 2011 Load: 43.7 t ADT: 387

TATNIC ROAD

Good

Over: I-95

0.091 mi E of N Village R, York, ME

Built 1996 Load: 43.7 t ADT: 1,752

ALFRED ST

Good

Over: B&M RR

.6 MI W US 1, York, ME

Built 2004 Load: 43.7 t ADT: 21,790

SHORE RD

Good

Over: CAPE NEDDICK RIVER

0.3 MI NE JCT US1A, York, ME

Built 2007 Load: 44.7 t ADT: 1,910
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.