US Bridges

Vt 00012 Ml over Ayers Brook

Fair

Orange County, Vermont · 5.0 MI N Jct. VT.12A N · Structure no. 200241004709022

Built
1928
97 years old, rebuilt 2022
Condition
Fair
inspected April 2023
Type
Slab
Concrete
Length
33 ft
1 main span
Daily traffic
400
2023 count
Owner
State
State Highway Agency

About this bridge

Vt 00012 Ml over Ayers Brook is a concrete slab carrying Vt 00012 Ml over Ayers Brook in Orange County, Vermont. It was built in 1928 and reconstructed in 2022, so it is 97 years old, older than the Vermont average of 60.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 400 vehicles a day, roughly 4% of them trucks, projected to reach 440 by 2043. The structure is 33 ft (10.1 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesVt 00012 Ml
CrossesAyers Brook
Location5.0 MI N Jct. VT.12A N
RouteState Highway 12
StateVermont
Coordinates43.9961, -72.65138
Functional classRural Major 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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating64 US tons
Inventory rating38 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length33 ft (10.1 m)
Longest span32 ft (9.8 m)
Deck width31 ft (9.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2023)
Projected traffic440 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$674,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Vt 00012 Ml over Ayers Brook built?

It was built in 1928, making it 97 years old in 2025. It was reconstructed in 2022.

What condition is Vt 00012 Ml over Ayers 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 April 2023.

How much traffic does Vt 00012 Ml over Ayers Brook carry?

About 400 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Vt 00012 Ml over Ayers Brook?

The structure is 33 ft (10.1 m) long with a longest span of 32 ft (9.8 m) and a deck 31 ft wide.

Who owns Vt 00012 Ml over Ayers Brook?

It is owned by the State Highway Agency.