US Bridges

Vt 00017 Ml over Mill Brook

Good

Washington County, Vermont · 1.1 MI W Jct. VT.100 · Structure no. 200200003612082

Built
1939
86 years old, rebuilt 2007
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
81 ft
1 main span
Daily traffic
2,800
2018 count
Owner
State
State Highway Agency

About this bridge

Vt 00017 Ml over Mill Brook is a steel stringer/multi-beam or girder carrying Vt 00017 Ml over Mill Brook in Washington County, Vermont. It was built in 1939 and reconstructed in 2007, so it is 86 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,800 vehicles a day, roughly 2% of them trucks, projected to reach 2,940 by 2028. The structure is 81 ft (24.7 m) long and 32 ft wide. If it were closed, the detour would be 36 mi (58 km).

CarriesVt 00017 Ml
CrossesMill Brook
Location1.1 MI W Jct. VT.100
RouteState Highway 17
StateVermont
Coordinates44.18243, -72.86247
Functional classRural Major Collector

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.
Substructure8 Very GoodNo problems noted.
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 evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating88 US tons
Inventory rating52 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length81 ft (24.7 m)
Longest span78 ft (23.8 m)
Deck width32 ft (9.9 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,800 (2018)
Projected traffic2,940 by 2028
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed36 mi (58 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$971,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Vt 00017 Ml over Mill Brook built?

It was built in 1939, making it 86 years old in 2025. It was reconstructed in 2007.

What condition is Vt 00017 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 00017 Ml over Mill Brook carry?

About 2,800 vehicles per day (2018 count), of which roughly 2% are trucks.

How long is Vt 00017 Ml over Mill Brook?

The structure is 81 ft (24.7 m) long with a longest span of 78 ft (23.8 m) and a deck 32 ft wide.

Who owns Vt 00017 Ml over Mill Brook?

It is owned by the State Highway Agency.