US Bridges

Bridge ST over C Channel Kennebec River

Good

Somerset County, Maine · 0.1 MI E of JCT RTE 201 · Structure no. 1522

Built
2003
22 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
390 ft
3 main spans
Daily traffic
13,237
2016 count
Owner
State
State Highway Agency

About this bridge

Bridge ST over C Channel Kennebec River is a steel continuous stringer/multi-beam or girder carrying Bridge ST over C Channel Kennebec River in Somerset County, Maine. It was built in 2003, so it is 22 years old, younger than the Maine average of 53.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 13,237 vehicles a day, roughly 5% of them trucks, projected to reach 18,532 by 2036. The structure is 390 ft (118.8 m) long and 49 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesBridge ST
CrossesC Channel Kennebec River
Location0.1 MI E of JCT RTE 201
RouteState Highway 11
StateMaine
Coordinates44.58743, -69.59188
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating46.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, precast panels
Main spans3
Design loadGreater than HL 93
Structure length390 ft (118.8 m)
Longest span148 ft (45.1 m)
Deck width49 ft (14.8 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,237 (2016)
Projected traffic18,532 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Bridge ST over C Channel Kennebec River built?

It was built in 2003, making it 22 years old in 2025.

What condition is Bridge ST over C Channel Kennebec River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does Bridge ST over C Channel Kennebec River carry?

About 13,237 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Bridge ST over C Channel Kennebec River?

The structure is 390 ft (118.8 m) long with a longest span of 148 ft (45.1 m) and a deck 49 ft wide.

Who owns Bridge ST over C Channel Kennebec River?

It is owned by the State Highway Agency.