US Bridges

Vt 00100 Ml over Moss Glen Brook

Fair

Lamoille County, Vermont · 2.4 MI N Jct. VT.108 · Structure no. 200029021008082

Built
1934
91 years old, rebuilt 1972
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
54 ft
1 main span
Daily traffic
9,700
2018 count
Owner
State
State Highway Agency

About this bridge

Vt 00100 Ml over Moss Glen Brook is a steel stringer/multi-beam or girder carrying Vt 00100 Ml over Moss Glen Brook in Lamoille County, Vermont. It was built in 1934 and reconstructed in 1972, so it is 91 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 9,700 vehicles a day, roughly 9% of them trucks, projected to reach 10,185 by 2028. The structure is 54 ft (16.5 m) long and 42 ft wide. If it were closed, the detour would be 23 mi (37 km).

CarriesVt 00100 Ml
CrossesMoss Glen Brook
Location2.4 MI N Jct. VT.108
RouteState Highway 100
StateVermont
Coordinates44.48829, -72.65113
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 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 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 rating39 US tons
Inventory rating23 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length54 ft (16.5 m)
Longest span52 ft (15.8 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,700 (2018)
Projected traffic10,185 by 2028
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 km)
TollOn a free road
National Highway SystemNo
Strategic Highway NetworkInterstate STRAHNET route

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$844,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Vt 00100 Ml over Moss Glen Brook built?

It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1972.

What condition is Vt 00100 Ml over Moss Glen 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 September 2023.

How much traffic does Vt 00100 Ml over Moss Glen Brook carry?

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

How long is Vt 00100 Ml over Moss Glen Brook?

The structure is 54 ft (16.5 m) long with a longest span of 52 ft (15.8 m) and a deck 42 ft wide.

Who owns Vt 00100 Ml over Moss Glen Brook?

It is owned by the State Highway Agency.