US Bridges

Lewiston RD over Cobbosseecontee Stream

Good

Kennebec County, Maine · Litchfld-W.Gardiner Tl · Structure no. 2029

Built
2023
2 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
89 ft
1 main span
Daily traffic
2,396
2016 count
Owner
State
State Highway Agency

About this bridge

Lewiston RD over Cobbosseecontee Stream is a steel stringer/multi-beam or girder carrying Lewiston RD over Cobbosseecontee Stream in Kennebec County, Maine. It was built in 2023, so it is 2 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,396 vehicles a day, roughly 5% of them trucks, projected to reach 3,354 by 2036. The structure is 89 ft (27.1 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesLewiston RD
CrossesCobbosseecontee Stream
LocationLitchfld-W.Gardiner Tl
RouteState Highway 9
CountyKennebec County
StateMaine
Coordinates44.20301, -69.89927
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating58.2 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length89 ft (27.1 m)
Longest span85 ft (25.9 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,396 (2016)
Projected traffic3,354 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Lewiston RD over Cobbosseecontee Stream built?

It was built in 2023, making it 2 years old in 2025.

What condition is Lewiston RD over Cobbosseecontee Stream 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 January 2024.

How much traffic does Lewiston RD over Cobbosseecontee Stream carry?

About 2,396 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Lewiston RD over Cobbosseecontee Stream?

The structure is 89 ft (27.1 m) long with a longest span of 85 ft (25.9 m) and a deck 33 ft wide.

Who owns Lewiston RD over Cobbosseecontee Stream?

It is owned by the State Highway Agency.