County profile · official public datasets

Washington County, ME

110 public highway bridges tracked in the FHWA National Bridge Inventory: 38.2% rated Good, 42.7% Fair, 19.1% Poor.

110
Public bridges
38.2%
Good condition
19.1%
Poor condition

The verdict

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

Washington County posts a higher-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.

12th
of 16 on Poor share
19.1%
Poor-condition share
110
public highway bridges
1972
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.

Washington County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Washington County ranks #12 of 16 Maine counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 19.1%). Washington County, Maine contains 110 public highway bridges. Roughly 38.2% are rated “Good,” 42.7% “Fair,” and 19.1% “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

110

Public highway bridges in Washington County

Good condition

38.2%

42 of 110 rated 7-9

Fair condition

42.7%

47 of 110 rated 5-6

Poor condition

19.1%

21 of 110 rated 4 or below

In-state Poor-share rank

#12 of 16

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

Condition distribution

Share of 110 NBI-tracked bridges by lowest applicable component rating.

Good
38.2% (42)
Fair
42.7% (47)
Poor
19.1% (21)

Washington County's Poor-condition bridges carry 21,293 vehicle crossings a day

That is 11.4% of the county's reported daily bridge traffic on 19.1% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 1,014 crossings a day against 2,415 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 110 of 110 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

55.5% of Washington County's bridges have passed the 50-year mark

61 of the 110 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 38.2% 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 21.2% of the county's Poor-condition bridge traffic

ROUTE 1 over CHANDLER RIVER, built 1934, carries 4,513 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 21-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 21,293 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Washington County's bridges were built

110 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 2000s, when 16 of the county's bridges still in the inventory were built, which is 14.5% of those with a recorded year. That cohort is now 15 to 24 years old in the 2024 inventory. Its average build year (1972) matches the Maine average (1970).

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

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

The 5 Maine counties nearest Washington County in number of bridges, with their condition splits. Its 19.1% Poor share is the 3rd-lowest of these 6. Its average build year of 1972 against a peer-group mean of 1967 is 5 years newer.

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

Bridge inventory size and condition shares for Washington County and the 5 Maine counties closest to it in inventory size
County Bridges Poor
Androscoggin County 135 10.4%
Franklin County 128 21.9%
Washington County (this page) 110 19.1%
Waldo County 92 17.4%
Piscataquis County 80 21.3%
Hancock County 70 22.9%

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 Washington 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 Washington County, both outside Maine so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside ME (110 bridges here).

Similar average build year

Nearest mean year-built outside ME (1972 here).

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

All bridges (110)

COUNTY RD

Fair

Over: EAST STREAM

1.0 MI E TOWNLINE, Washington, ME

Built 1919 Load: 4.2 t ADT: 2,211

INDIAN RIVER RD

Fair

Over: INDIAN RIVER

6.5 MI SO US 1, Washington, ME

Built 1921 Load: 17.5 t ADT: 2,051

US 1

Fair

Over: DENNYS RIVER

1MI SO #86, Washington, ME

Built 1955 Load: 21.1 t ADT: 1,694

US 1

Fair

Over: NEW HOBART STREAM

2 MI. S. #86, Washington, ME

Built 1955 Load: 21.7 t ADT: 1,559

SACARAPA RD

Fair

Over: TROUT BROOK

0.7 MI N OF HARRINGTON, Washington, ME

Built 1948 Load: 22.7 t ADT: 74

MAIN ST

Fair

Over: WAPSACONHAGAN

.1 MI N JCT 1, Washington, ME

Built 1930 Load: 24.9 t ADT: 1,936

BLACKS WOODS RD

Fair

Over: TUNK STREAM

0.1 MI E OF TWP10 MD, Washington, ME

Built 1933 Load: 25.3 t ADT: 999

NORTH ST

Fair

Over: NARRAGUAGUS RIVER

1 MI E JCT 182, Washington, ME

Built 1924 Load: 25.6 t ADT: 705

CHASES MILL RD

Fair

Over: EAST MACHIAS RIVER

.3 MI. E. RT. 191, Washington, ME

Built 1952 Load: 26.9 t ADT: 348

RIM RD

Fair

Over: MACHIAS RIVER

0.6 MI N OF JCT RTE 92, Washington, ME

Built 1972 Load: 27.2 t ADT: 1,250

MAIN ST

Fair

Over: ST CROIX RIVER

0.3 MI N OF JCT RTE US1, Washington, ME

Built 1957 Load: 27.5 t ADT: 2,560

VILLAGE RD

Fair

Over: TUNK STREAM

0.3 MI SW OF US 1 E jct, Washington, ME

Built 1927 Load: 27.9 t ADT: 316

SACO RD

Fair

Over: WESTERN LITTLE RIVER

4MI N JCT US1, Washington, ME

Built 1942 Load: 28.8 t ADT: 63

US HIGHWAY 1A

Fair

Over: HARRINGTON RIVER

.2MI S JCT US 1, Washington, ME

Built 1976 Load: 30.5 t ADT: 3,167

DYER BAY RD

Fair

Over: DYER CREEK

2 MI S JCT US 1, Washington, ME

Built 1949 Load: 32.4 t ADT: 547

STATION RD

Fair

Over: CHANDLER RIVER

2.5 MI W JCT US 1, Washington, ME

Built 1949 Load: 33.7 t ADT: 228

AIRLINE RD

Fair

Over: NARRAGUAGUS RIVER

0.5 M NE OF T22 MD, Washington, ME

Built 1957 Load: 33.7 t ADT: 2,872

LUBEC RD

Fair

Over: ORANGE RIVER

0.1 MI S JCT RTE US 1, Washington, ME

Built 1951 Load: 34.7 t ADT: 2,283

TIDE MILL RD

Fair

Over: CRANE MILL BROOK

.3 MI N/E RTE 1, Washington, ME

Built 1972 Load: 34.7 t ADT: 74

BUNKER HILL RD

Fair

Over: DENNYS RIVER

DENNYSVLE-EDMUNDS TL, Washington, ME

Built 1921 Load: 34.7 t ADT: 252

ROUTE 1

Fair

Over: WHITTEN BROOK

50 FT E OF T7 SD T L, Washington, ME

Built 1962 Load: 34.7 t ADT: 3,590

MILFORD RD

Fair

Over: MUSQUASH STREAM

0.5 MI E TOWN LINE, Washington, ME

Built 1997 Load: 35.6 t ADT: 515

VANCEBORO RD

Fair

Over: MAIN TOMAH STREAM

7.2 MI NE OF TOPSFIELD, Washington, ME

Built 1967 Load: 35.6 t ADT: 326

NORTH ST

Fair

Over: SAINT CROIX RIVER

.2 MI NO US #1, Washington, ME

Built 1967 Load: 37.3 t ADT: 1,016

RIDGE RD

Fair

Over: PENNAMAQUAN

1.4 MI NE OF RTE 214, Washington, ME

Built 1944 Load: 38.6 t ADT: 316

US 1

Fair

Over: LITTLE RIVER

.2 MI N JCT RTE 190, Washington, ME

Built 1956 Load: 38.6 t ADT: 2,283

SPRINGFIELD RD

Fair

Over: BASKAHEGAN STREAM

0.1 MI W OF JCT US 1, Washington, ME

Built 1953 Load: 41.5 t ADT: 1,100

MAIN ST

Fair

Over: HARRINGTON RIVER

.7 MI W TOWN, Washington, ME

Built 1968 Load: 43.7 t ADT: 2,692

WATER ST

Fair

Over: PLEASANT RIVER

2.5 MI S JCT 1, Washington, ME

Built 1981 Load: 45.7 t ADT: 1,304

AIRLINE RD

Fair

Over: MACHIAS RIVER

0.1 MI E TOWNLINE, Washington, ME

Built 1971 Load: 47.6 t ADT: 2,872

CROSS RD

Fair

Over: LITTLE RIVER

1 MI. E. TIBBETTSTOWN RD., Washington, ME

Built 1954 Load: 48.6 t ADT: 53

S MAIN ST

Fair

Over: DAN HILL STREAM

0.8 MI N OF JONESBORO, Washington, ME

Built 2005 Load: 49.2 t ADT: 821

ROUTE 1

Fair

Over: PLEASANT RIVER

.7 MI E TOWNLINE, Washington, ME

Built 1961 Load: 49.9 t ADT: 4,408

CUTLER RD

Fair

Over: MEADOW BROOK

4 MI SE OF WHITING, Washington, ME

Built 1980 Load: 52.2 t ADT: 715

US HIGHWAY 1A

Fair

Over: MILL RIVER

MILBRIDGE/HARRNGTON T.L., Washington, ME

Built 1942 Load: 56.1 t ADT: 3,461

US 1

Fair

Over: PENNAMAQUAM RIVER

1.5 MI E JCT RTE 214, Washington, ME

Built 1951 Load: 57.0 t ADT: 2,093

ST RTE 191

Fair

Over: HOLMES STREAM

0.2 MI N OFCUTLER, Washington, ME

Built 1974 Load: 58.0 t ADT: 947

AIRLINE RD

Fair

Over: EAST MACHIAS RIVER

4 MI NE JCT OF RTE 192, Washington, ME

Built 1973 Load: 59.0 t ADT: 2,814

LAKEVIEW RD

Fair

Over: BIG MUSQUASH STREAM

2.5 MI W JCT US1, Washington, ME

Built 1938 Load: 63.5 t ADT: 973

LOVE LAKE RD

Fair

Over: INLET TO LOVE LAKE

1 MI E OF RTE 9 ONINV976, Washington, ME

Built 1996 Load: 64.5 t ADT: 32

ST RTE 6

Fair

Over: LITTLE TOMAH STREAM

5.0 MI NE OF TOPSFIELD, Washington, ME

Built 1982 Load: 64.5 t ADT: 410

MAIN ST

Fair

Over: EAST MACHIAS RIVER

AT JCT RTE 191, Washington, ME

Built 1902 Load: 64.5 t ADT: 2,979

MARSHVILLE RD

Fair

Over: MILL CREEK

3 MI S TOWNLINE, Washington, ME

Built 1982 Load: 64.5 t ADT: 916

TIBBETTSTOWN RD

Fair

Over: LITTLE RIVER

3.0 MI N OF JCT RTE US 1, Washington, ME

Built 1961 Load: 64.5 t ADT: 284

OLD COUNTY RD

Fair

Over: PENNAMAQUAN RIVER

0.6 MI SW RT 1, Washington, ME

Built 1901 Load: 71.6 t ADT: 515

S MEADOW RD

Fair

Over: LITTLE RIVER

0.4 MI W JCT RTE US1, Washington, ME

Built 1944 Load: 97.2 t ADT: 631

UNIONVILLE RD

Fair

Over: TUNK STREAM

5.8 MI N JCT US 1, Washington, ME

Built 1952 Load: 97.2 t ADT: 221

MAIN ST

Good

Over: MIDDLE RIVER

.4 MI E TOWNLINE, Washington, ME

Built 1930 Load: 0.0 t ADT: 9,731

HOWARD MILL ROAD

Good

Over: W BRANCH MAGURREWOCK CRK

HOWARD MILL ROAD, Washington, ME

Built 2000 Load: 24.5 t ADT: 20

GOODALL HEATH ROAD

Good

Over: W BRANCH MAGURREWOCK CRK

GOODALL HEATH ROAD, Washington, ME

Built 2000 Load: 24.5 t ADT: 1
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.