US Bridges

Vt 00017 Ml over Mill Brook

Fair

Washington County, Vermont · 0.1 MI W Jct. VT.100 · Structure no. 200200003812162

Built
1939
86 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
64 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, 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 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 2,800 vehicles a day, roughly 6% of them trucks, projected to reach 2,940 by 2028. The structure is 64 ft (19.5 m) long and 26 ft wide. If it were closed, the detour would be 36 mi (58 km).

Location

Open in Google Maps
CarriesVt 00017 Ml
CrossesMill Brook
Location0.1 MI W Jct. VT.100
RouteState Highway 17
CountyWashington County
StateVermont
Coordinates44.18078, -72.84254
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 protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating61.9 US tons
Inventory rating37 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length64 ft (19.5 m)
Longest span59 ft (18 m)
Deck width26 ft (7.8 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,800 (2018)
Projected traffic2,940 by 2028
Trucks6%
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$626,000 (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.

What condition is Vt 00017 Ml 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 2023.

How much traffic does Vt 00017 Ml over Mill Brook carry?

About 2,800 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is Vt 00017 Ml over Mill Brook?

The structure is 64 ft (19.5 m) long with a longest span of 59 ft (18 m) and a deck 26 ft wide.

Who owns Vt 00017 Ml over Mill Brook?

It is owned by the State Highway Agency.