US Bridges

TR 01 FAS 211 over Cobb Brook

Fair

Chittenden County, Vermont · 4.4 MI N Jct. VT.17 · Structure no. 200211007H04082

Built
1976
49 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete
Length
23 ft
1 main span
Daily traffic
780
2017 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 01 FAS 211 over Cobb Brook is a concrete slab carrying TR 01 FAS 211 over Cobb Brook in Chittenden County, Vermont. It was built in 1976, so it is 49 years old, younger 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 780 vehicles a day, roughly 6% of them trucks, projected to reach 819 by 2027. The structure is 23 ft (7 m) long and 31 ft wide. If it were closed, the detour would be 23 mi (37 km).

Location

Open in Google Maps
CarriesTR 01 FAS 211
CrossesCobb Brook
Location4.4 MI N Jct. VT.17
RouteCounty Highway 1
CountyChittenden County
StateVermont
Coordinates44.27098, -72.96111
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.9 US tons
Inventory rating53 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length23 ft (7 m)
Longest span20 ft (6.1 m)
Deck width31 ft (9.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic780 (2017)
Projected traffic819 by 2027
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was TR 01 FAS 211 over Cobb Brook built?

It was built in 1976, making it 49 years old in 2025.

What condition is TR 01 FAS 211 over Cobb 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 2024.

How much traffic does TR 01 FAS 211 over Cobb Brook carry?

About 780 vehicles per day (2017 count), of which roughly 6% are trucks.

How long is TR 01 FAS 211 over Cobb Brook?

The structure is 23 ft (7 m) long with a longest span of 20 ft (6.1 m) and a deck 31 ft wide.

Who owns TR 01 FAS 211 over Cobb Brook?

It is owned by the Town or Township Highway Agency.