US Bridges

Vt 00100 Ml over N. Br. Deerfield River

Fair

Windham County, Vermont · 6.5 MI N Jct. VT.9 W · Structure no. 200013005813042

Built
1928
97 years old, rebuilt 1969
Condition
Fair
inspected June 2023
Type
Tee Beam
Concrete
Length
59 ft
1 main span
Daily traffic
5,000
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 1928 and reconstructed in 1969, 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 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 5,000 vehicles a day, roughly 9% of them trucks, projected to reach 5,250 by 2028. The structure is 59 ft (18 m) long and 35 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesVt 00100 Ml
CrossesN. Br. Deerfield River
Location6.5 MI N Jct. VT.9 W
RouteState Highway 100
CountyWindham County
StateVermont
Coordinates42.94293, -72.86027
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating34 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length59 ft (18 m)
Longest span57 ft (17.4 m)
Deck width35 ft (10.8 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2018)
Projected traffic5,250 by 2028
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$783,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Vt 00100 Ml over N. Br. Deerfield River built?

It was built in 1928, making it 97 years old in 2025. It was reconstructed in 1969.

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 5,000 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 59 ft (18 m) long with a longest span of 57 ft (17.4 m) and a deck 35 ft wide.

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

It is owned by the State Highway Agency.