US Bridges

C3056 over Gihon River

Good

Lamoille County, Vermont · 0.01 MI to JCT W VT100C · Structure no. 100806003208061

Built
1983
42 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
69 ft
1 main span
Daily traffic
10
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C3056 over Gihon River is a steel stringer/multi-beam or girder carrying C3056 over Gihon River in Lamoille County, Vermont. It was built in 1983, so it is 42 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 10 vehicles a day, roughly 2% of them trucks, projected to reach 11 by 2029. The structure is 69 ft (21 m) long and 18 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesC3056
CrossesGihon River
Location0.01 MI to JCT W VT100C
StateVermont
Coordinates44.63986, -72.66492
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 protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68 US tons
Inventory rating36 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length69 ft (21 m)
Longest span67 ft (20.4 m)
Deck width18 ft (5.4 m)
Roadway width15 ft (4.5 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was C3056 over Gihon River built?

It was built in 1983, making it 42 years old in 2025.

What condition is C3056 over Gihon 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 September 2023.

How much traffic does C3056 over Gihon River carry?

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

How long is C3056 over Gihon River?

The structure is 69 ft (21 m) long with a longest span of 67 ft (20.4 m) and a deck 18 ft wide.

Who owns C3056 over Gihon River?

It is owned by the Town or Township Highway Agency.