US Bridges

Troy RD over Sebasticook River

Fair

Waldo County, Maine · 300 Ft E of RTE 11 & 100 · Structure no. 5257

Built
1950
75 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
177 ft
2 main spans
Daily traffic
1,343
2016 count
Owner
State
State Highway Agency

About this bridge

Troy RD over Sebasticook River is a steel stringer/multi-beam or girder carrying Troy RD over Sebasticook River in Waldo County, Maine. It was built in 1950, so it is 75 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 1,343 vehicles a day, roughly 5% of them trucks, projected to reach 2,015 by 2036. The structure is 177 ft (53.9 m) long and 35 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesTroy RD
CrossesSebasticook River
Location300 Ft E of RTE 11 & 100
RouteCounty Highway 0
CountyWaldo County
StateMaine
Coordinates44.69208, -69.42656
Functional classRural Minor Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
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 rating30.3 US tons
Inventory rating23.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length177 ft (53.9 m)
Longest span85 ft (26 m)
Deck width35 ft (10.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,343 (2016)
Projected traffic2,015 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed19.9 mi (32 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 Troy RD over Sebasticook River built?

It was built in 1950, making it 75 years old in 2025.

What condition is Troy RD over Sebasticook 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 August 2023.

How much traffic does Troy RD over Sebasticook River carry?

About 1,343 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Troy RD over Sebasticook River?

The structure is 177 ft (53.9 m) long with a longest span of 85 ft (26 m) and a deck 35 ft wide.

Who owns Troy RD over Sebasticook River?

It is owned by the State Highway Agency.