US Bridges

C30CL over Clyde River

Fair

Orleans County, Vermont · 0.25 M to Newport ST HWY · Structure no. 101015000610151

Built
1988
37 years old
Condition
Fair
inspected October 2024
Type
Slab
Prestressed Concrete
Length
56 ft
1 main span
Daily traffic
185
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

C30CL over Clyde River is a prestressed concrete slab carrying C30CL over Clyde River in Orleans County, Vermont. It was built in 1988, so it is 37 years old, younger 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 185 vehicles a day, roughly 2% of them trucks, projected to reach 195 by 2029. The structure is 56 ft (17.1 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesC30CL
CrossesClyde River
Location0.25 M to Newport ST HWY
StateVermont
Coordinates44.93473, -72.17689
Functional classUrban 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 protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating63.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length56 ft (17.1 m)
Longest span54 ft (16.5 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic185 (2019)
Projected traffic195 by 2029
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 C30CL over Clyde River built?

It was built in 1988, making it 37 years old in 2025.

What condition is C30CL over Clyde 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 October 2024.

How much traffic does C30CL over Clyde River carry?

About 185 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is C30CL over Clyde River?

The structure is 56 ft (17.1 m) long with a longest span of 54 ft (16.5 m) and a deck 26 ft wide.

Who owns C30CL over Clyde River?

It is owned by the City or Municipal Highway Agency.