US Bridges

TR 01 FAS 166 over Mill Brook

Fair

Windsor County, Vermont · 2.6 MI W Jct. VT.14 · Structure no. 200166001614132

Built
1919
106 years old, rebuilt 1976
Condition
Fair
inspected June 2024
Type
Slab
Concrete
Length
30 ft
1 main span
Daily traffic
390
2017 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 01 FAS 166 over Mill Brook is a concrete slab carrying TR 01 FAS 166 over Mill Brook in Windsor County, Vermont. It was built in 1919 and reconstructed in 1976, so it is 106 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 390 vehicles a day, roughly 6% of them trucks, projected to reach 410 by 2027. The structure is 30 ft (9.1 m) long and 29 ft wide. If it were closed, the detour would be 23 mi (37 km).

CarriesTR 01 FAS 166
CrossesMill Brook
Location2.6 MI W Jct. VT.14
RouteCounty Highway 1
StateVermont
Coordinates43.72437, -72.45346
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.
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 inspectionJune 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86 US tons
Inventory rating52 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 10
Structure length30 ft (9.1 m)
Longest span22 ft (6.7 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic390 (2017)
Projected traffic410 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 166 over Mill Brook built?

It was built in 1919, making it 106 years old in 2025. It was reconstructed in 1976.

What condition is TR 01 FAS 166 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 June 2024.

How much traffic does TR 01 FAS 166 over Mill Brook carry?

About 390 vehicles per day (2017 count), of which roughly 6% are trucks.

How long is TR 01 FAS 166 over Mill Brook?

The structure is 30 ft (9.1 m) long with a longest span of 22 ft (6.7 m) and a deck 29 ft wide.

Who owns TR 01 FAS 166 over Mill Brook?

It is owned by the Town or Township Highway Agency.