US Bridges

C3031 over Lilliesville Brook

Fair

Windsor County, Vermont · 0.6 MI JCT TH 31 + TH 43 · Structure no. 101404003314041

Built
1930
95 years old, rebuilt 2007
Condition
Fair
inspected November 2023
Type
Slab
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
50
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C3031 over Lilliesville Brook is a prestressed concrete slab carrying C3031 over Lilliesville Brook in Windsor County, Vermont. It was built in 1930 and reconstructed in 2007, so it is 95 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 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 50 vehicles a day, roughly 2% of them trucks, projected to reach 53 by 2029. The structure is 40 ft (12.2 m) long and 18 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesC3031
CrossesLilliesville Brook
Location0.6 MI JCT TH 31 + TH 43
CountyWindsor County
StateVermont
Coordinates43.80606, -72.68445
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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating99 US tons
Inventory rating66 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length40 ft (12.2 m)
Longest span39 ft (11.9 m)
Deck width18 ft (5.5 m)
Roadway width17 ft (5.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2019)
Projected traffic53 by 2029
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$302,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C3031 over Lilliesville Brook built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 2007.

What condition is C3031 over Lilliesville Brook 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 November 2023.

How much traffic does C3031 over Lilliesville Brook carry?

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

How long is C3031 over Lilliesville Brook?

The structure is 40 ft (12.2 m) long with a longest span of 39 ft (11.9 m) and a deck 18 ft wide.

Who owns C3031 over Lilliesville Brook?

It is owned by the Town or Township Highway Agency.