US Bridges

Vt 00117 Ml over Alder Brook

Good

Chittenden County, Vermont · 2.4 MI E JCT VT15&2A · Structure no. 205400000204061

Built
2021
4 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
34 ft
1 main span
Daily traffic
9,400
2015 count
Owner
State
State Highway Agency

About this bridge

Vt 00117 Ml over Alder Brook is a concrete culvert carrying Vt 00117 Ml over Alder Brook in Chittenden County, Vermont. It was built in 2021, so it is 4 years old, younger than the Vermont average of 60.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 9,400 vehicles a day, roughly 4% of them trucks, projected to reach 10,100 by 2035. The structure is 34 ft (10.4 m) long.

CarriesVt 00117 Ml
CrossesAlder Brook
Location2.4 MI E JCT VT15&2A
RouteState Highway 117
StateVermont
Coordinates44.47995, -73.06664
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating50 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length34 ft (10.4 m)
Longest span32 ft (9.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,400 (2015)
Projected traffic10,100 by 2035
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 00117 Ml over Alder Brook built?

It was built in 2021, making it 4 years old in 2025.

What condition is Vt 00117 Ml over Alder Brook in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does Vt 00117 Ml over Alder Brook carry?

About 9,400 vehicles per day (2015 count), of which roughly 4% are trucks.

How long is Vt 00117 Ml over Alder Brook?

The structure is 34 ft (10.4 m) long with a longest span of 32 ft (9.8 m).

Who owns Vt 00117 Ml over Alder Brook?

It is owned by the State Highway Agency.