US Bridges

C30CU over N. Br. Winooski River

Good

Washington County, Vermont · 0.1 MI to JCT W CL1 TH5 · Structure no. 101211001312111

Built
2019
6 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
88 ft
1 main span
Daily traffic
220
2016 count
Owner
City
City or Municipal Highway Agency

About this bridge

C30CU over N. Br. Winooski River is a steel stringer/multi-beam or girder carrying C30CU over N. Br. Winooski River in Washington County, Vermont. It was built in 2019, so it is 6 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 220 vehicles a day, roughly 2% of them trucks, projected to reach 240 by 2040. The structure is 88 ft (26.8 m) long and 24 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesC30CU
CrossesN. Br. Winooski River
Location0.1 MI to JCT W CL1 TH5
CountyWashington County
StateVermont
Coordinates44.27149, -72.57066
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable 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 rating54 US tons
Inventory rating42 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length88 ft (26.8 m)
Longest span84 ft (25.6 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic220 (2016)
Projected traffic240 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 C30CU over N. Br. Winooski River built?

It was built in 2019, making it 6 years old in 2025.

What condition is C30CU over N. Br. Winooski River 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 August 2023.

How much traffic does C30CU over N. Br. Winooski River carry?

About 220 vehicles per day (2016 count), of which roughly 2% are trucks.

How long is C30CU over N. Br. Winooski River?

The structure is 88 ft (26.8 m) long with a longest span of 84 ft (25.6 m) and a deck 24 ft wide.

Who owns C30CU over N. Br. Winooski River?

It is owned by the City or Municipal Highway Agency.