US Bridges

Vt 00012 Ml over Dog River

Fair

Washington County, Vermont · 5.6 MI S Jct. U.S.2 · Structure no. 200241006712032

Built
1934
91 years old, rebuilt 1964
Condition
Fair
inspected August 2023
Type
Truss - Thru
Steel
Length
145 ft
1 main span
Daily traffic
3,700
2018 count
Owner
State
State Highway Agency

About this bridge

Vt 00012 Ml over Dog River is a steel truss - thru carrying Vt 00012 Ml over Dog River in Washington County, Vermont. It was built in 1934 and reconstructed in 1964, so it is 91 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 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 3,700 vehicles a day, roughly 6% of them trucks, projected to reach 3,885 by 2028. The structure is 145 ft (44.2 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesVt 00012 Ml
CrossesDog River
Location5.6 MI S Jct. U.S.2
RouteState Highway 12
CountyWashington County
StateVermont
Coordinates44.19979, -72.63321
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating53 US tons
Inventory rating23 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length145 ft (44.2 m)
Longest span140 ft (42.7 m)
Deck width30 ft (9.1 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deck15 ft (4.5 m)

Traffic and service

Average daily traffic3,700 (2018)
Projected traffic3,885 by 2028
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.6 million (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Vt 00012 Ml over Dog River built?

It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1964.

What condition is Vt 00012 Ml over Dog 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 Vt 00012 Ml over Dog River carry?

About 3,700 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is Vt 00012 Ml over Dog River?

The structure is 145 ft (44.2 m) long with a longest span of 140 ft (42.7 m) and a deck 30 ft wide.

Who owns Vt 00012 Ml over Dog River?

It is owned by the State Highway Agency.