US Bridges

C3033 over Gihon River

FairPosted for load

Lamoille County, Vermont · 0.3 MI to JCT W VT100C · Structure no. 100806003008061

Built
1870
155 years old, rebuilt 1980
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
50 ft
1 main span
Daily traffic
50
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C3033 over Gihon River is a steel stringer/multi-beam or girder carrying C3033 over Gihon River in Lamoille County, Vermont. It was built in 1870 and reconstructed in 1980, so it is 155 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 5 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: posted for load restriction.

It carries about 50 vehicles a day, roughly 2% of them trucks, projected to reach 53 by 2029. The structure is 50 ft (15.2 m) long and 13 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesC3033
CrossesGihon River
Location0.3 MI to JCT W VT100C
CountyLamoille County
StateVermont
Coordinates44.63812, -72.64857
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating35.1 US tons
Inventory rating24 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length50 ft (15.2 m)
Longest span39 ft (11.9 m)
Deck width13 ft (4 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deck10 ft (3 m)

Traffic and service

Average daily traffic50 (2019)
Projected traffic53 by 2029
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$281,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C3033 over Gihon River built?

It was built in 1870, making it 155 years old in 2025. It was reconstructed in 1980.

What condition is C3033 over Gihon 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 C3033 over Gihon River carry?

About 50 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is C3033 over Gihon River?

The structure is 50 ft (15.2 m) long with a longest span of 39 ft (11.9 m) and a deck 13 ft wide.

Who owns C3033 over Gihon River?

It is owned by the Town or Township Highway Agency.