US Bridges

C3033 over Donahue Brook

Fair

Chittenden County, Vermont · 0.27 MI to JCT W CL2 TH4 · Structure no. 100411000704111

Built
1934
91 years old
Condition
Fair
inspected September 2023
Type
Tee Beam
Concrete
Length
33 ft
1 main span
Daily traffic
350
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C3033 over Donahue Brook is a concrete tee beam carrying C3033 over Donahue Brook in Chittenden County, Vermont. It was built in 1934, 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 350 vehicles a day, roughly 2% of them trucks, projected to reach 368 by 2029. The structure is 33 ft (10.1 m) long and 23 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesC3033
CrossesDonahue Brook
Location0.27 MI to JCT W CL2 TH4
CountyChittenden County
StateVermont
Coordinates44.41827, -72.98977
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length33 ft (10.1 m)
Longest span31 ft (9.4 m)
Deck width23 ft (7.1 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2019)
Projected traffic368 by 2029
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

OwnerTown or Township Highway Agency
Maintained byTown or Township 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$320,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C3033 over Donahue Brook built?

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

What condition is C3033 over Donahue 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 C3033 over Donahue Brook carry?

About 350 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is C3033 over Donahue Brook?

The structure is 33 ft (10.1 m) long with a longest span of 31 ft (9.4 m) and a deck 23 ft wide.

Who owns C3033 over Donahue Brook?

It is owned by the Town or Township Highway Agency.