US Bridges

Vt 00100 Ml over Deerfield River

Poor

Bennington County, Vermont · 5.2 MI N Jct. VT.8 · Structure no. 200102002502092

Built
1954
71 years old
Condition
Poor
inspected April 2024
Type
Girder and Floorbeam System
Steel Continuous
Length
340 ft
3 main spans
Daily traffic
1,000
2018 count
Owner
State
State Highway Agency

About this bridge

Vt 00100 Ml over Deerfield River is a steel continuous girder and floorbeam system carrying Vt 00100 Ml over Deerfield River in Bennington 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 1,000 vehicles a day, roughly 6% of them trucks, projected to reach 1,050 by 2028. The structure is 340 ft (103.6 m) long and 39 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesVt 00100 Ml
CrossesDeerfield River
Location5.2 MI N Jct. VT.8
RouteState Highway 100
StateVermont
Coordinates42.77122, -72.94511
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
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 protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 12 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating32 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length340 ft (103.6 m)
Longest span130 ft (39.6 m)
Deck width39 ft (11.8 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2018)
Projected traffic1,050 by 2028
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 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$4.7 million (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Vt 00100 Ml over Deerfield River built?

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

What condition is Vt 00100 Ml over Deerfield River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.

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

About 1,000 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is Vt 00100 Ml over Deerfield River?

The structure is 340 ft (103.6 m) long with a longest span of 130 ft (39.6 m) and a deck 39 ft wide.

Who owns Vt 00100 Ml over Deerfield River?

It is owned by the State Highway Agency.