US Bridges

Avon Valley RD over Valley Brook

Fair

Franklin County, Maine · 1.9 MI Wly Route 4 · Structure no. 6111

Built
1967
58 years old, rebuilt 2020
Condition
Fair
inspected October 2023
Type
Slab
Concrete
Length
29 ft
1 main span
Daily traffic
429
2016 count
Owner
State
State Highway Agency

About this bridge

Avon Valley RD over Valley Brook is a concrete slab carrying Avon Valley RD over Valley Brook in Franklin County, Maine. It was built in 1967 and reconstructed in 2020, so it is 58 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 429 vehicles a day, roughly 5% of them trucks, projected to reach 686 by 2036. The structure is 29 ft (8.9 m) long and 29 ft wide. If it were closed, the detour would be 100 mi (161 km).

CarriesAvon Valley RD
CrossesValley Brook
Location1.9 MI Wly Route 4
RouteCity Street 0
StateMaine
Coordinates44.7966, -70.37199
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating56.8 US tons
Inventory rating44 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length29 ft (8.9 m)
Longest span25 ft (7.6 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic429 (2016)
Projected traffic686 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed100 mi (161 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 Avon Valley RD over Valley Brook built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 2020.

What condition is Avon Valley RD over Valley 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 October 2023.

How much traffic does Avon Valley RD over Valley Brook carry?

About 429 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Avon Valley RD over Valley Brook?

The structure is 29 ft (8.9 m) long with a longest span of 25 ft (7.6 m) and a deck 29 ft wide.

Who owns Avon Valley RD over Valley Brook?

It is owned by the State Highway Agency.