Total bridges
236
Public highway bridges in York County
County profile · official public datasets
236 public highway bridges tracked in the FHWA National Bridge Inventory: 32.6% rated Good, 58.1% Fair, 9.3% Poor.
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.
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.
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
Share of 236 NBI-tracked bridges by lowest applicable component rating.
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.
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.
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.
236 bridges with a recorded construction year, grouped by decade
Built before 1900
2 bridges
1900–1909
3 bridges
1910–1919
1 bridges
1920–1929
8 bridges
1930–1939
15 bridges
1940–1949
25 bridges
1950–1959
18 bridges
1960–1969
19 bridges
1970–1979
28 bridges
1980–1989
26 bridges
1990–1999
18 bridges
2000–2009
38 bridges
2010–2019
34 bridges
2020–2029
1 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.
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.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Penobscot County | 301 | 20.9% | 61.1% | 17.9% | 1972 |
| Oxford County | 252 | 25% | 57.5% | 17.5% | 1968 |
| York County (this page) | 236 | 32.6% | 58.1% | 9.3% | 1976 |
| Aroostook County | 229 | 17.9% | 71.6% | 10.5% | 1970 |
| Kennebec County | 188 | 19.1% | 67.6% | 13.3% | 1965 |
| Somerset County | 173 | 19.7% | 56.6% | 23.7% | 1967 |
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.
Two NBI-derived peer sets for York County, both outside Maine so the neighborhoods are not the same-state size table above.
Nearest county inventories outside ME (236 bridges here).
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.
Over: HOSAC BROOK
.1 MI E ROHR RD, York, ME
Over: PISCATAQUA RIVER RTE 103
MAINE-NEW HAMPSHIRE SL, York, ME
Over: OSSIPEE RIVER
0.2 MI N OF JCT RTE 25, York, ME
Over: HOLLAND BROOK
.2 MI W DOLE RIDGE RD, York, ME
Over: PENDEXTER BROOK
0.9 MI W OF RT 5, York, ME
Over: PENDEXTER BROOK
1.5 MI SW OF JCT RTE 11, York, ME
Over: SOUTH RIVER
.3 MI N FRED LEAVITT RD, York, ME
Over: OSSIPEE RIVER
50 SW OF JCT ROUTE 160, York, ME
Over: OSSIPEE RIVER
TOWNLINE, York, ME
Over: LITTLE OSIPEE RV
20 FT E BEAVER BERRY RD, York, ME
Over: LITTLE OSSIPEE RIVER
0.1 MI SLY OF ROUTE 11, York, ME
Over: GREAT WORKS RIVER
0.8 MI N KOF JCT RTE 9, York, ME
Over: ELIOT RD
ME SIDE N OF TRUSS END, York, ME
Over: LITTLE RIVER
0.1 MI E OF JCT RTE 5, York, ME
Over: OSSIPEE RIVER
0.6 MI W OF JCT RTE 25, York, ME
Over: NE CHANNEL SACO RIVER
0.2 MI N OF BIDDEFORD, York, ME
Over: MERRILAND R
2.3 MI NW I95, York, ME
Over: B&M RR
1.8 MI SW OF JCT RTE 109, York, ME
Over: I-95
0.262 mi NW of US 1, York, ME
Over: B & M RR
0.4 MI SEOF ROUTE 111, York, ME
Over: B&M RR
.8 MI E OF JCT RTE 4, York, ME
Over: LITTLE OSSIPEE RIVER
0.9MI S DOLES RIDGE RD, York, ME
Over: KENNEBUNK RIVER
0.2 MI NE OF RTE 9A & 35, York, ME
Over: I-95
0.065 mi SE of Downing Rd, York, ME
Over: I-95
0.476 mi E of Jenkins Rd, York, ME
Over: GREAT WORKS RIVER
.7 MI N JCT 4, York, ME
Over: OGUNQUIT RIVER
.4 MI SW TATNIC RD, York, ME
Over: YORK RIVER
0.192 mi N of US Rte 1, York, ME
Over: I-95
0.358 mi W of Biddo Conn, York, ME
Over: MOUSAM RIVER
0.1 MI N RTE 11/109, York, ME
Over: STURGEON CREEK
1.3 MI S OF JCT RTE 236, York, ME
Over: YORK RIVER
0.173 mi N of US 1, York, ME
Over: I-95
0.330 mi W of US 1, York, ME
Over: LITTLE RIVER
3.5 MI S RTE 202, York, ME
Over: SACO RIVER OVERFLOW CHAN
250 FT W OF STANDISH TL, York, ME
Over: CANAL
1.9 MI W RTE 109, York, ME
Over: SACO RIVER
BIDDEFORD - SACO TL, York, ME
Over: HOOPER BROOK
1.1 MI SW EMERYS BR RD, York, ME
Over: I-95
0.776 mi E of Loop Rd, York, ME
Over: SALMON FALLS RIVER
MAINE - N.H. LINE, York, ME
Over: LITTLE OSSIPEE RIVER
.3 MI W RTE 11, York, ME
Over: MIDDLE BR MOUSAM R
1.5 MI W RTE 4, York, ME
Over: I-95
0.108 mi W of Shadagee, York, ME
Over: SALMON FALLS
50 E OF N. H. RTE 125, York, ME
Over: GREAT WORKS RIVER
.1 MI W JCT 236, York, ME
Over: BIG BROOK
1.2 MI NE OF STATE LINE, York, ME
Over: I-95
0.113 mi W of Old Alewive, York, ME
Over: SALMON FALLS RIVER
.3 MI S OF S JCT RTE 236, York, ME
Over: SALMON FALLS RIVER
TOWNLINE, York, ME
Over: RAMP US 1 TO I-95
350 FT E OF RAMP H/I95, York, ME
Read our methodology - how this data is sourced, computed, and verified.
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.