US Bridges

Dinsmore RD over Interstate I-95 NB & SB

Fair

Kennebec County, Maine · 1 MI W JCT RTE 104 · Structure no. 5782

Built
1958
67 years old, rebuilt 2001
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
368 ft
6 main spans
Daily traffic
586
2016 count
Owner
State
State Highway Agency

About this bridge

Dinsmore RD over Interstate I-95 NB & SB is a steel stringer/multi-beam or girder carrying Dinsmore RD over Interstate I-95 NB & SB in Kennebec County, Maine. It was built in 1958 and reconstructed in 2001, so it is 67 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 586 vehicles a day, roughly 5% of them trucks, projected to reach 938 by 2036. The structure is 368 ft (112.2 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesDinsmore RD
CrossesInterstate I-95 NB & SB
Location1 MI W JCT RTE 104
RouteCity Street 0
CountyKennebec County
StateMaine
Coordinates44.42251, -69.74065
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating45.3 US tons
Inventory rating35.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans6
Design loadH 20
Structure length368 ft (112.2 m)
Longest span74 ft (22.6 m)
Deck width29 ft (8.9 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic586 (2016)
Projected traffic938 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Dinsmore RD over Interstate I-95 NB & SB built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2001.

What condition is Dinsmore RD over Interstate I-95 NB & SB 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 May 2024.

How much traffic does Dinsmore RD over Interstate I-95 NB & SB carry?

About 586 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Dinsmore RD over Interstate I-95 NB & SB?

The structure is 368 ft (112.2 m) long with a longest span of 74 ft (22.6 m) and a deck 29 ft wide.

Who owns Dinsmore RD over Interstate I-95 NB & SB?

It is owned by the State Highway Agency.