US Bridges

Vt 00100 Ml over Cook Brook

Fair

Windham County, Vermont · 1.7 MI N Jct. VT.30 N · Structure no. 200013008713102

Built
1956
69 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
69 ft
1 main span
Daily traffic
2,700
2018 count
Owner
State
State Highway Agency

About this bridge

Vt 00100 Ml over Cook Brook is a steel stringer/multi-beam or girder carrying Vt 00100 Ml over Cook Brook in Windham County, Vermont. It was built in 1956, so it is 69 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 2,700 vehicles a day, roughly 9% of them trucks, projected to reach 2,835 by 2028. The structure is 69 ft (21 m) long and 36 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesVt 00100 Ml
CrossesCook Brook
Location1.7 MI N Jct. VT.30 N
RouteState Highway 100
StateVermont
Coordinates43.17072, -72.83087
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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
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 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 rating47 US tons
Inventory rating28 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length69 ft (21 m)
Longest span67 ft (20.4 m)
Deck width36 ft (10.9 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,700 (2018)
Projected traffic2,835 by 2028
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 Cook Brook built?

It was built in 1956, making it 69 years old in 2025.

What condition is Vt 00100 Ml over Cook 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 Cook Brook carry?

About 2,700 vehicles per day (2018 count), of which roughly 9% are trucks.

How long is Vt 00100 Ml over Cook Brook?

The structure is 69 ft (21 m) long with a longest span of 67 ft (20.4 m) and a deck 36 ft wide.

Who owns Vt 00100 Ml over Cook Brook?

It is owned by the State Highway Agency.