US Bridges

C3046 over Seymour River

Good

Lamoille County, Vermont · 0.1 MI to JCT W CL2 TH1 · Structure no. 100802002808021

Built
2014
11 years old
Condition
Good
inspected July 2024
Type
Tee Beam
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
230
2015 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C3046 over Seymour River is a prestressed concrete tee beam carrying C3046 over Seymour River in Lamoille County, Vermont. It was built in 2014, so it is 11 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 230 vehicles a day, roughly 15% of them trucks, projected to reach 242 by 2025. The structure is 60 ft (18.3 m) long and 26 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesC3046
CrossesSeymour River
Location0.1 MI to JCT W CL2 TH1
StateVermont
Coordinates44.58859, -72.86526
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating56 US tons
Inventory rating43 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length60 ft (18.3 m)
Longest span56 ft (17.1 m)
Deck width26 ft (7.8 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic230 (2015)
Projected traffic242 by 2025
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was C3046 over Seymour River built?

It was built in 2014, making it 11 years old in 2025.

What condition is C3046 over Seymour 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 July 2024.

How much traffic does C3046 over Seymour River carry?

About 230 vehicles per day (2015 count), of which roughly 15% are trucks.

How long is C3046 over Seymour River?

The structure is 60 ft (18.3 m) long with a longest span of 56 ft (17.1 m) and a deck 26 ft wide.

Who owns C3046 over Seymour River?

It is owned by the Town or Township Highway Agency.