County profile · official public datasets

Androscoggin County, ME

135 public highway bridges tracked in the FHWA National Bridge Inventory: 41.5% rated Good, 48.1% Fair, 10.4% Poor.

135
Public bridges: 41.5%
Good condition: 10.4%
Poor condition

The verdict

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

Androscoggin County posts a top-quartile lowest Poor-condition share among rated counties in the state across mid-size county bridge inventory.

Top 13%
lowest Poor share in state: 10.4%
Poor-condition share: 135
public highway bridges: 1974
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.

Androscoggin County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Androscoggin County ranks #2 of 16 Maine counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 10.4%). Androscoggin County, Maine contains 135 public highway bridges. Roughly 41.5% are rated “Good,” 48.1% “Fair,” and 10.4% “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

135

Public highway bridges in Androscoggin County

Good condition

41.5%

56 of 135 rated 7-9

Fair condition

48.1%

65 of 135 rated 5-6

Poor condition

10.4%

14 of 135 rated 4 or below

In-state Poor-share rank

#2 of 16

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

Condition distribution

Share of 135 NBI-tracked bridges by lowest applicable component rating.

Good

41.5% (56)

Fair

48.1% (65)

Poor

10.4% (14)

Androscoggin County's Poor-condition bridges carry 61,313 vehicle crossings a day

That is 8.1% of the county's reported daily bridge traffic on 10.4% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 4,380 crossings a day against 4,564 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 135 of 135 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

55.6% of Androscoggin County's bridges have passed the 50-year mark

75 of the 135 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 41.5% 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 31.4% of the county's Poor-condition bridge traffic

MAIN ST over PEDESTRIAN WALKWAY, built 1975, carries 19,242 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 14-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 61,313 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1910s

2
1920s

4
1930s

11
1940s

4
1950s

43
1960s

3
1970s

13
1980s

4
1990s

15
2000s

16
2010s

18
2020s

2

What this shows Construction peaked in the 1950s, when 43 of the county's bridges still in the inventory were built, which is 31.9% of those with a recorded year. That cohort is now 65 to 74 years old in the 2024 inventory. Its average build year (1974) matches the Maine average (1970).

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

The 5 Maine counties nearest Androscoggin County in number of bridges, with their condition splits. Its 10.4% Poor share is the 1st-lowest of these 6. Its average build year of 1974 against a peer-group mean of 1967 is 7 years newer.

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

Bridge inventory size and condition shares for Androscoggin County and the 5 Maine counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Kennebec County	188	19.1%	67.6%	13.3%	1965
Somerset County	173	19.7%	56.6%	23.7%	1967
Androscoggin County (this page)	135	41.5%	48.1%	10.4%	1974
Franklin County	128	24.2%	53.9%	21.9%	1968
Washington County	110	38.2%	42.7%	19.1%	1972
Waldo County	92	16.3%	66.3%	17.4%	1964

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

Similar inventory size

Nearest county inventories outside ME (135 bridges here).

Nevada County, CA · 135 bridges
Meriwether County, GA · 135 bridges
Steuben County, IN · 135 bridges
Warren County, IN · 135 bridges

Similar average build year

Nearest mean year-built outside ME (1974 here).

Knox County, TN · avg 1974 · 588 bridges
Summit County, OH · avg 1974 · 563 bridges
Onondaga County, NY · avg 1974 · 472 bridges
Orange County, NY · avg 1974 · 472 bridges

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

All 135 Good 56 Fair 65 Poor 14

All bridges (135)

Sort:

Androscoggin County Bridge Snapshot

Condition distribution

Androscoggin County's Poor-condition bridges carry 61,313 vehicle crossings a day

55.6% of Androscoggin County's bridges have passed the 50-year mark

One structure carries 31.4% of the county's Poor-condition bridge traffic

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

Nationwide counties with similar inventory size or average build year

Similar inventory size

Similar average build year

All bridges (135)

W MINOT RD

CHESTNUT ST

CROWLEY RD

WOODMAN HILL RD

CHURCH HILL RD

MAIN ST

E POLAND RD

TURNER RD

CANTON RD

FISHER FARM ROAD

WEBSTER ROAD

N RIVER RD

FAIR ST

FEDERAL RD

ALFRED A PLOURDE

LAKE SHORE DR

N AUBURN RD

I-95 (NB)

I-95(SB)

I-95 (NB)

I-95(SB)

FERRY SLIP

POLAND SPRING ROAD

BROAD ST

MAIN ST

MAIN ST

WOODMAN HILL RD

US HIGHWAY 202

ALFRED A PLOURDE P

I-95 (NB)

I-95(SB)

ELM ST

VIETNAM VET CONNEC

AUBURN RD

JORDAN RD

E HEBRON RD

I-95(SB)

I-95 (NB)

I-95 (SB)

VETERANS MEMORIAL

I-95 (NB)

I-95 (SB)

RD INV 3201031

BUCKFIELD RD

MAIN ST

LINCOLN ST

VMB RAMP E

BRIDGE ST

MINOT AV

S WASHINGTON ST

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