US Bridges

Ridge RD over Pennamaquan

Fair

Washington County, Maine · 1.4 MI NE of RTE 214 · Structure no. 3884

Built
1944
81 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
50 ft
1 main span
Daily traffic
316
2016 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Ridge RD over Pennamaquan is a steel stringer/multi-beam or girder carrying Ridge RD over Pennamaquan in Washington County, Maine. It was built in 1944, so it is 81 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 5 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 316 vehicles a day, roughly 5% of them trucks, projected to reach 506 by 2036. The structure is 50 ft (15.1 m) long and 27 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesRidge RD
CrossesPennamaquan
Location1.4 MI NE of RTE 214
RouteCity Street 0
CountyWashington County
StateMaine
Coordinates44.98559, -67.19776
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating55 US tons
Inventory rating42.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length50 ft (15.1 m)
Longest span45 ft (13.8 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic316 (2016)
Projected traffic506 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ridge RD over Pennamaquan built?

It was built in 1944, making it 81 years old in 2025.

What condition is Ridge RD over Pennamaquan 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 Ridge RD over Pennamaquan carry?

About 316 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Ridge RD over Pennamaquan?

The structure is 50 ft (15.1 m) long with a longest span of 45 ft (13.8 m) and a deck 27 ft wide.

Who owns Ridge RD over Pennamaquan?

It is owned by the Town or Township Highway Agency.