US Bridges

Vt 00100 Ml over Clay Brook

Fair

Washington County, Vermont · 3.5 MI S Jct. VT.17 · Structure no. 200013017212172

Built
1954
71 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
59 ft
1 main span
Daily traffic
3,200
2018 count
Owner
State
State Highway Agency

About this bridge

Vt 00100 Ml over Clay Brook is a steel stringer/multi-beam or girder carrying Vt 00100 Ml over Clay Brook in Washington County, Vermont. It was built in 1954, so it is 71 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 3,200 vehicles a day, roughly 9% of them trucks, projected to reach 3,360 by 2028. The structure is 59 ft (18 m) long and 37 ft wide. If it were closed, the detour would be 28 mi (45 km).

CarriesVt 00100 Ml
CrossesClay Brook
Location3.5 MI S Jct. VT.17
RouteState Highway 100
StateVermont
Coordinates44.13703, -72.84615
Functional classRural Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46 US tons
Inventory rating27 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length59 ft (18 m)
Longest span57 ft (17.4 m)
Deck width37 ft (11.4 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,200 (2018)
Projected traffic3,360 by 2028
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed28 mi (45 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 Vt 00100 Ml over Clay Brook built?

It was built in 1954, making it 71 years old in 2025.

What condition is Vt 00100 Ml over Clay 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 September 2023.

How much traffic does Vt 00100 Ml over Clay Brook carry?

About 3,200 vehicles per day (2018 count), of which roughly 9% are trucks.

How long is Vt 00100 Ml over Clay Brook?

The structure is 59 ft (18 m) long with a longest span of 57 ft (17.4 m) and a deck 37 ft wide.

Who owns Vt 00100 Ml over Clay Brook?

It is owned by the State Highway Agency.