US Bridges

Main RD over M C RR

Fair

Hancock County, Maine · 6 MI S JCT of RTE 46 · Structure no. 6324

Built
1973
52 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
248 ft
3 main spans
Daily traffic
10,891
2016 count
Owner
State
State Highway Agency

About this bridge

Main RD over M C RR is a steel continuous stringer/multi-beam or girder carrying Main RD over M C RR in Hancock County, Maine. It was built in 1973, so it is 52 years old, younger 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 10,891 vehicles a day, roughly 5% of them trucks, projected to reach 15,247 by 2036. The structure is 248 ft (75.6 m) long and 52 ft wide. If it were closed, the detour would be 46 mi (74 km).

Location

Open in Google Maps
CarriesMain RD
CrossesM C RR
Location6 MI S JCT of RTE 46
RouteState Highway 1
CountyHancock County
StateMaine
Coordinates44.68137, -68.57818
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.4 US tons
Inventory rating27.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length248 ft (75.6 m)
Longest span87 ft (26.5 m)
Deck width52 ft (15.7 m)
Roadway width47 ft (14.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,891 (2016)
Projected traffic15,247 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed46 mi (74 km)
TollOn a free road
National Highway SystemYes

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 Main RD over M C RR built?

It was built in 1973, making it 52 years old in 2025.

What condition is Main RD over M C RR 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 December 2024.

How much traffic does Main RD over M C RR carry?

About 10,891 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Main RD over M C RR?

The structure is 248 ft (75.6 m) long with a longest span of 87 ft (26.5 m) and a deck 52 ft wide.

Who owns Main RD over M C RR?

It is owned by the State Highway Agency.