US Bridges

TR 04 FAS 209 over Mill Brook

Fair

Chittenden County, Vermont · 3.3 MI N Jct. U.S.2 · Structure no. 200209001504092

Built
1927
98 years old, rebuilt 1962
Condition
Fair
inspected August 2024
Type
Tee Beam
Concrete
Length
39 ft
1 main span
Daily traffic
1,300
2017 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 04 FAS 209 over Mill Brook is a concrete tee beam carrying TR 04 FAS 209 over Mill Brook in Chittenden County, Vermont. It was built in 1927 and reconstructed in 1962, so it is 98 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 1,300 vehicles a day, roughly 6% of them trucks, projected to reach 1,365 by 2027. The structure is 39 ft (11.9 m) long and 35 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesTR 04 FAS 209
CrossesMill Brook
Location3.3 MI N Jct. U.S.2
RouteCounty Highway 4
StateVermont
Coordinates44.44539, -72.97533
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length39 ft (11.9 m)
Longest span38 ft (11.6 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2017)
Projected traffic1,365 by 2027
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 04 FAS 209 over Mill Brook built?

It was built in 1927, making it 98 years old in 2025. It was reconstructed in 1962.

What condition is TR 04 FAS 209 over Mill 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 04 FAS 209 over Mill Brook carry?

About 1,300 vehicles per day (2017 count), of which roughly 6% are trucks.

How long is TR 04 FAS 209 over Mill Brook?

The structure is 39 ft (11.9 m) long with a longest span of 38 ft (11.6 m) and a deck 35 ft wide.

Who owns TR 04 FAS 209 over Mill Brook?

It is owned by the Town or Township Highway Agency.