US Bridges

Vt 00100 Ml over Patch Brook

Fair

Windsor County, Vermont · 3.5 MI N Jct. VT.103 N · Structure no. 200013010314122

Built
1936
89 years old, rebuilt 1972
Condition
Fair
inspected June 2023
Type
Tee Beam
Concrete
Length
43 ft
1 main span
Daily traffic
1,200
2018 count
Owner
State
State Highway Agency

About this bridge

Vt 00100 Ml over Patch Brook is a concrete tee beam carrying Vt 00100 Ml over Patch Brook in Windsor County, Vermont. It was built in 1936 and reconstructed in 1972, so it is 89 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 1,200 vehicles a day, roughly 9% of them trucks, projected to reach 1,260 by 2028. The structure is 43 ft (13.1 m) long and 32 ft wide. If it were closed, the detour would be 36 mi (58 km).

CarriesVt 00100 Ml
CrossesPatch Brook
Location3.5 MI N Jct. VT.103 N
RouteState Highway 100
StateVermont
Coordinates43.46461, -72.70451
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length43 ft (13.1 m)
Longest span40 ft (12.2 m)
Deck width32 ft (9.9 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,200 (2018)
Projected traffic1,260 by 2028
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed36 mi (58 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 Patch Brook built?

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 1972.

What condition is Vt 00100 Ml over Patch 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 June 2023.

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

About 1,200 vehicles per day (2018 count), of which roughly 9% are trucks.

How long is Vt 00100 Ml over Patch Brook?

The structure is 43 ft (13.1 m) long with a longest span of 40 ft (12.2 m) and a deck 32 ft wide.

Who owns Vt 00100 Ml over Patch Brook?

It is owned by the State Highway Agency.