US Bridges

C3004 over Clark Brook

Good

Addison County, Vermont · 0.1 MI JCT TH 4 & TH 14 · Structure no. 100107001701071

Built
1950
75 years old
Condition
Good
inspected October 2023
Type
Culvert
Steel
Length
37 ft
2 main spans
Daily traffic
20
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C3004 over Clark Brook is a steel culvert carrying C3004 over Clark Brook in Addison County, Vermont. It was built in 1950, 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 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 20 vehicles a day, roughly 2% of them trucks, projected to reach 21 by 2029. The structure is 37 ft (11.3 m) long. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesC3004
CrossesClark Brook
Location0.1 MI JCT TH 4 & TH 14
CountyAddison County
StateVermont
Coordinates43.99546, -72.8774
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating31 US tons
Inventory rating18 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadUnknown
Structure length37 ft (11.3 m)
Longest span18 ft (5.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2019)
Projected traffic21 by 2029
Trucks2%
Lanes on structure2
Traffic directionTwo-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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$244,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C3004 over Clark Brook built?

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

What condition is C3004 over Clark Brook 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 October 2023.

How much traffic does C3004 over Clark Brook carry?

About 20 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is C3004 over Clark Brook?

The structure is 37 ft (11.3 m) long with a longest span of 18 ft (5.5 m).

Who owns C3004 over Clark Brook?

It is owned by the Town or Township Highway Agency.