US Bridges

C4048 over Winooski River

Fair

Washington County, Vermont · 0.1 MI to JCT W US2 · Structure no. 101209002212091

Built
1919
106 years old
Condition
Fair
inspected September 2023
Type
Girder and Floorbeam System
Steel
Length
60 ft
1 main span
Daily traffic
10
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C4048 over Winooski River is a steel girder and floorbeam system carrying C4048 over Winooski River in Washington County, Vermont. It was built in 1919, so it is 106 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. Its operating status is: open, temporary structure in place while original is closed.

It carries about 10 vehicles a day, roughly 2% of them trucks, projected to reach 11 by 2029. The structure is 60 ft (18.3 m) long and 16 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesC4048
CrossesWinooski River
Location0.1 MI to JCT W US2
CountyWashington County
StateVermont
Coordinates44.30302, -72.39742
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, temporary structure in place while original is closed
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating0 US tons
Inventory rating0 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length60 ft (18.3 m)
Longest span56 ft (17.1 m)
Deck width16 ft (4.9 m)
Roadway width10 ft (3.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2019)
Projected traffic11 by 2029
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$600,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C4048 over Winooski River built?

It was built in 1919, making it 106 years old in 2025.

What condition is C4048 over Winooski River 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 C4048 over Winooski River carry?

About 10 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is C4048 over Winooski River?

The structure is 60 ft (18.3 m) long with a longest span of 56 ft (17.1 m) and a deck 16 ft wide.

Who owns C4048 over Winooski River?

It is owned by the Town or Township Highway Agency.