US Bridges

Vt 00100 Ml over N. Br. Deerfield River

Fair

Windham County, Vermont · 1.6 MI N Jct. VT.9 W · Structure no. 200013005113222

Built
1933
92 years old, rebuilt 1971
Condition
Fair
inspected June 2023
Type
Tee Beam
Concrete
Length
107 ft
2 main spans
Daily traffic
810
2018 count
Owner
State
State Highway Agency

About this bridge

Vt 00100 Ml over N. Br. Deerfield River is a concrete tee beam carrying Vt 00100 Ml over N. Br. Deerfield River in Windham County, Vermont. It was built in 1933 and reconstructed in 1971, so it is 92 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 810 vehicles a day, roughly 9% of them trucks, projected to reach 851 by 2028. The structure is 107 ft (32.6 m) long and 37 ft wide. If it were closed, the detour would be 18 mi (29 km).

CarriesVt 00100 Ml
CrossesN. Br. Deerfield River
Location1.6 MI N Jct. VT.9 W
RouteState Highway 100
StateVermont
Coordinates42.88613, -72.86514
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating50 US tons
Inventory rating30 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length107 ft (32.6 m)
Longest span52 ft (15.8 m)
Deck width37 ft (11.4 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic810 (2018)
Projected traffic851 by 2028
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed18 mi (29 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 N. Br. Deerfield River built?

It was built in 1933, making it 92 years old in 2025. It was reconstructed in 1971.

What condition is Vt 00100 Ml over N. Br. Deerfield 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 June 2023.

How much traffic does Vt 00100 Ml over N. Br. Deerfield River carry?

About 810 vehicles per day (2018 count), of which roughly 9% are trucks.

How long is Vt 00100 Ml over N. Br. Deerfield River?

The structure is 107 ft (32.6 m) long with a longest span of 52 ft (15.8 m) and a deck 37 ft wide.

Who owns Vt 00100 Ml over N. Br. Deerfield River?

It is owned by the State Highway Agency.