US Bridges

C30WA over Union Brook

Good

Washington County, Vermont · 0.02 MI to JCT W Wall ST · Structure no. 101213008212131

Built
1973
52 years old, rebuilt 2001
Condition
Good
inspected August 2024
Type
Slab
Prestressed Concrete
Length
41 ft
1 main span
Daily traffic
750
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C30WA over Union Brook is a prestressed concrete slab carrying C30WA over Union Brook in Washington County, Vermont. It was built in 1973 and reconstructed in 2001, so it is 52 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 750 vehicles a day, roughly 2% of them trucks, projected to reach 788 by 2029. The structure is 41 ft (12.5 m) long and 36 ft wide.

CarriesC30WA
CrossesUnion Brook
Location0.02 MI to JCT W Wall ST
StateVermont
Coordinates44.14918, -72.6608
Functional classRural 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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
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 rating92 US tons
Inventory rating55 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length41 ft (12.5 m)
Longest span39 ft (11.9 m)
Deck width36 ft (11 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic750 (2019)
Projected traffic788 by 2029
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was C30WA over Union Brook built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2001.

What condition is C30WA over Union 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 August 2024.

How much traffic does C30WA over Union Brook carry?

About 750 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is C30WA over Union Brook?

The structure is 41 ft (12.5 m) long with a longest span of 39 ft (11.9 m) and a deck 36 ft wide.

Who owns C30WA over Union Brook?

It is owned by the Town or Township Highway Agency.