US Bridges

Mercer RD over Fillibrown Brook

Fair

Franklin County, Maine · 1.5 MI E of JCT RTE 27 · Structure no. 3842

Built
1955
70 years old, rebuilt 2009
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
75 ft
1 main span
Daily traffic
4,731
2016 count
Owner
State
State Highway Agency

About this bridge

Mercer RD over Fillibrown Brook is a steel stringer/multi-beam or girder carrying Mercer RD over Fillibrown Brook in Franklin County, Maine. It was built in 1955 and reconstructed in 2009, so it is 70 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 4,731 vehicles a day, roughly 5% of them trucks, projected to reach 6,623 by 2036. The structure is 75 ft (23 m) long and 34 ft wide. If it were closed, the detour would be 72.1 mi (116 km).

Location

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CarriesMercer RD
CrossesFillibrown Brook
Location1.5 MI E of JCT RTE 27
RouteState Highway 2
CountyFranklin County
StateMaine
Coordinates44.64653, -69.97651
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating47.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length75 ft (23 m)
Longest span72 ft (21.9 m)
Deck width34 ft (10.4 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,731 (2016)
Projected traffic6,623 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed72.1 mi (116 km)
TollOn a free road
National Highway SystemYes

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 Mercer RD over Fillibrown Brook built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 2009.

What condition is Mercer RD over Fillibrown Brook 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 July 2023.

How much traffic does Mercer RD over Fillibrown Brook carry?

About 4,731 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Mercer RD over Fillibrown Brook?

The structure is 75 ft (23 m) long with a longest span of 72 ft (21.9 m) and a deck 34 ft wide.

Who owns Mercer RD over Fillibrown Brook?

It is owned by the State Highway Agency.