US Bridges

C3004 over Brook

Fair

Windham County, Vermont · At JCT TH 4 & TH 39 · Structure no. 101317004113171

Built
1939
86 years old, rebuilt 1963
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
58 ft
1 main span
Daily traffic
50
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C3004 over Brook is a steel stringer/multi-beam or girder carrying C3004 over Brook in Windham County, Vermont. It was built in 1939 and reconstructed in 1963, so it is 86 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 58 ft (17.7 m) long and 14 ft wide. If it were closed, the detour would be 21.1 mi (34 km).

Location

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CarriesC3004
CrossesBrook
LocationAt JCT TH 4 & TH 39
CountyWindham County
StateVermont
Coordinates43.05136, -72.72523
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating19 US tons
Inventory rating11 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadH 10
Structure length58 ft (17.7 m)
Longest span55 ft (16.8 m)
Deck width14 ft (4.3 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

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 closed21.1 mi (34 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$334,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C3004 over Brook built?

It was built in 1939, making it 86 years old in 2025. It was reconstructed in 1963.

What condition is C3004 over 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 September 2024.

How much traffic does C3004 over Brook carry?

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

How long is C3004 over Brook?

The structure is 58 ft (17.7 m) long with a longest span of 55 ft (16.8 m) and a deck 14 ft wide.

Who owns C3004 over Brook?

It is owned by the Town or Township Highway Agency.