US Bridges

C3029 over Cook Brook

Fair

Orleans County, Vermont · 0.1 MI to JCT W CL2 TH1 · Structure no. 101012001810121

Built
1940
85 years old
Condition
Fair
inspected August 2023
Type
Girder and Floorbeam System
Steel
Length
35 ft
1 main span
Daily traffic
150
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C3029 over Cook Brook is a steel girder and floorbeam system carrying C3029 over Cook Brook in Orleans County, Vermont. It was built in 1940, so it is 85 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 5 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 150 vehicles a day, roughly 2% of them trucks, projected to reach 158 by 2029. The structure is 35 ft (10.7 m) long and 19 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesC3029
CrossesCook Brook
Location0.1 MI to JCT W CL2 TH1
CountyOrleans County
StateVermont
Coordinates44.96391, -72.44274
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48 US tons
Inventory rating34 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length35 ft (10.7 m)
Longest span33 ft (10.1 m)
Deck width19 ft (5.7 m)
Roadway width19 ft (5.7 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$280,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C3029 over Cook Brook built?

It was built in 1940, making it 85 years old in 2025.

What condition is C3029 over Cook 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 August 2023.

How much traffic does C3029 over Cook Brook carry?

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

How long is C3029 over Cook Brook?

The structure is 35 ft (10.7 m) long with a longest span of 33 ft (10.1 m) and a deck 19 ft wide.

Who owns C3029 over Cook Brook?

It is owned by the Town or Township Highway Agency.