US Bridges

Vt 00104 Ml over Mill Brook

Good

Franklin County, Vermont · 0.8 MI N Jct. VT.128 · Structure no. 200023001006042

Built
1932
93 years old, rebuilt 2010
Condition
Good
inspected August 2023
Type
Slab
Prestressed Concrete
Length
34 ft
1 main span
Daily traffic
7,000
2018 count
Owner
State
State Highway Agency

About this bridge

Vt 00104 Ml over Mill Brook is a prestressed concrete slab carrying Vt 00104 Ml over Mill Brook in Franklin County, Vermont. It was built in 1932 and reconstructed in 2010, so it is 93 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 7,000 vehicles a day, roughly 4% of them trucks, projected to reach 7,350 by 2028. The structure is 34 ft (10.4 m) long and 36 ft wide. If it were closed, the detour would be 34.8 mi (56 km).

CarriesVt 00104 Ml
CrossesMill Brook
Location0.8 MI N Jct. VT.128
RouteState Highway 104
StateVermont
Coordinates44.66554, -73.00922
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
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 evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating65 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length34 ft (10.4 m)
Longest span32 ft (9.8 m)
Deck width36 ft (11 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,000 (2018)
Projected traffic7,350 by 2028
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed34.8 mi (56 km)
TollOn a free road
National Highway SystemNo
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Vt 00104 Ml over Mill Brook built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 2010.

What condition is Vt 00104 Ml over Mill 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 August 2023.

How much traffic does Vt 00104 Ml over Mill Brook carry?

About 7,000 vehicles per day (2018 count), of which roughly 4% are trucks.

How long is Vt 00104 Ml over Mill Brook?

The structure is 34 ft (10.4 m) long with a longest span of 32 ft (9.8 m) and a deck 36 ft wide.

Who owns Vt 00104 Ml over Mill Brook?

It is owned by the State Highway Agency.