US Bridges

C3010 over N. Br. Middlebury R.

Good

Addison County, Vermont · @ JCT of TH1 & TH10 · Structure no. 100116001201161

Built
1981
44 years old
Condition
Good
inspected August 2024
Type
Slab
Concrete
Length
31 ft
1 main span
Daily traffic
10
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C3010 over N. Br. Middlebury R. is a concrete slab carrying C3010 over N. Br. Middlebury R. in Addison County, Vermont. It was built in 1981, so it is 44 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 31 ft (9.4 m) long and 17 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesC3010
CrossesN. Br. Middlebury R.
Location@ JCT of TH1 & TH10
CountyAddison County
StateVermont
Coordinates44.00443, -73.01957
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80 US tons
Inventory rating43 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length31 ft (9.4 m)
Longest span29 ft (8.8 m)
Deck width17 ft (5.3 m)
Roadway width16 ft (4.8 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 C3010 over N. Br. Middlebury R. built?

It was built in 1981, making it 44 years old in 2025.

What condition is C3010 over N. Br. Middlebury R. 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 C3010 over N. Br. Middlebury R. carry?

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

How long is C3010 over N. Br. Middlebury R.?

The structure is 31 ft (9.4 m) long with a longest span of 29 ft (8.8 m) and a deck 17 ft wide.

Who owns C3010 over N. Br. Middlebury R.?

It is owned by the Town or Township Highway Agency.