US Bridges

Camden RD over ST George River

Fair

Knox County, Maine · 1.2 MI NE US 1 · Structure no. 5654

Built
1961
64 years old, rebuilt 2024
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
335 ft
4 main spans
Daily traffic
5,596
2016 count
Owner
State
State Highway Agency

About this bridge

Camden RD over ST George River is a steel continuous stringer/multi-beam or girder carrying Camden RD over ST George River in Knox County, Maine. It was built in 1961 and reconstructed in 2024, so it is 64 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 5,596 vehicles a day, roughly 5% of them trucks, projected to reach 7,834 by 2036. The structure is 335 ft (102.2 m) long and 36 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

CarriesCamden RD
CrossesST George River
Location1.2 MI NE US 1
RouteState Highway 90
StateMaine
Coordinates44.12288, -69.24429
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.7 US tons
Inventory rating35.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length335 ft (102.2 m)
Longest span80 ft (24.4 m)
Deck width36 ft (11 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,596 (2016)
Projected traffic7,834 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Camden RD over ST George River built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2024.

What condition is Camden RD over ST George 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 January 2025.

How much traffic does Camden RD over ST George River carry?

About 5,596 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Camden RD over ST George River?

The structure is 335 ft (102.2 m) long with a longest span of 80 ft (24.4 m) and a deck 36 ft wide.

Who owns Camden RD over ST George River?

It is owned by the State Highway Agency.