US Bridges

Old County RD over Pennamaquan River

Fair

Washington County, Maine · 0.6 MI SW Rt 1 · Structure no. 2021

Built
1901
124 years old
Condition
Fair
inspected August 2024
Type
Culvert
Masonry
Length
34 ft
2 main spans
Daily traffic
515
2016 count
Owner
State
State Highway Agency

About this bridge

Old County RD over Pennamaquan River is a masonry culvert carrying Old County RD over Pennamaquan River in Washington County, Maine. It was built in 1901, so it is 124 years old, older than the Maine average of 53.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 515 vehicles a day, roughly 5% of them trucks, projected to reach 824 by 2036. The structure is 34 ft (10.4 m) long.

CarriesOld County RD
CrossesPennamaquan River
Location0.6 MI SW Rt 1
RouteCity Street 0
StateMaine
Coordinates44.9532, -67.16006
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating78.9 US tons
Inventory rating78.9 US tons

Structure

Structure typeCulvert
MaterialMasonry
DeckNot applicable
Main spans2
Design loadUnknown
Structure length34 ft (10.4 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic515 (2016)
Projected traffic824 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Old County RD over Pennamaquan River built?

It was built in 1901, making it 124 years old in 2025.

What condition is Old County RD over Pennamaquan River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does Old County RD over Pennamaquan River carry?

About 515 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Old County RD over Pennamaquan River?

The structure is 34 ft (10.4 m) long with a longest span of 13 ft (4 m).

Who owns Old County RD over Pennamaquan River?

It is owned by the State Highway Agency.