US Bridges

Dexter RD over Main Str (sebasticook R)

Fair

Penobscot County, Maine · 0.1 MI S of Sangerville · Structure no. 3095

Built
1933
92 years old, rebuilt 1985
Condition
Fair
inspected April 2024
Type
Tee Beam
Concrete
Length
47 ft
1 main span
Daily traffic
2,083
2016 count
Owner
State
State Highway Agency

About this bridge

Dexter RD over Main Str (sebasticook R) is a concrete tee beam carrying Dexter RD over Main Str (sebasticook R) in Penobscot County, Maine. It was built in 1933 and reconstructed in 1985, so it is 92 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 2,083 vehicles a day, roughly 5% of them trucks, projected to reach 2,916 by 2036. The structure is 47 ft (14.3 m) long and 34 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

Location

Open in Google Maps
CarriesDexter RD
CrossesMain Str (sebasticook R)
Location0.1 MI S of Sangerville
RouteState Highway 23
CountyPenobscot County
StateMaine
Coordinates45.07491, -69.33468
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
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 protection7 GoodSome minor problems.
Last inspectionApril 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 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 rating41.8 US tons
Inventory rating32.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length47 ft (14.3 m)
Longest span45 ft (13.7 m)
Deck width34 ft (10.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,083 (2016)
Projected traffic2,916 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed19.3 mi (31 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 Dexter RD over Main Str (sebasticook R) built?

It was built in 1933, making it 92 years old in 2025. It was reconstructed in 1985.

What condition is Dexter RD over Main Str (sebasticook R) 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 April 2024.

How much traffic does Dexter RD over Main Str (sebasticook R) carry?

About 2,083 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Dexter RD over Main Str (sebasticook R)?

The structure is 47 ft (14.3 m) long with a longest span of 45 ft (13.7 m) and a deck 34 ft wide.

Who owns Dexter RD over Main Str (sebasticook R)?

It is owned by the State Highway Agency.