US Bridges

C3011 over Smith Brook

Poor

Windham County, Vermont · 0.1 MI to JCT W CL2 TH1 · Structure no. 101312004313121

Built
1950
75 years old, rebuilt 1980
Condition
Poor
inspected April 2024
Type
Slab
Concrete
Length
30 ft
1 main span
Daily traffic
150
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C3011 over Smith Brook is a concrete slab carrying C3011 over Smith Brook in Windham County, Vermont. It was built in 1950 and reconstructed in 1980, so it is 75 years old, older than the Vermont average of 60.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 150 vehicles a day, roughly 2% of them trucks, projected to reach 158 by 2029. The structure is 30 ft (9.1 m) long and 20 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesC3011
CrossesSmith Brook
Location0.1 MI to JCT W CL2 TH1
CountyWindham County
StateVermont
Coordinates42.99956, -72.67642
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating99 US tons
Inventory rating75 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span28 ft (8.5 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2019)
Projected traffic158 by 2029
Trucks2%
Lanes on structure2
Traffic directionTwo-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 statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$259,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C3011 over Smith Brook built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1980.

What condition is C3011 over Smith Brook in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.

How much traffic does C3011 over Smith Brook carry?

About 150 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is C3011 over Smith Brook?

The structure is 30 ft (9.1 m) long with a longest span of 28 ft (8.5 m) and a deck 20 ft wide.

Who owns C3011 over Smith Brook?

It is owned by the Town or Township Highway Agency.