US Bridges

Alt Vt 00122 Ml over Miller Run

GoodPosted for load

Caledonia County, Vermont · 1.0 M1 W JCT US.5 · Structure no. 200260000403072

Built
1900
125 years old, rebuilt 1995
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
61 ft
1 main span
Daily traffic
4,500
2018 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Alt Vt 00122 Ml over Miller Run is a steel stringer/multi-beam or girder carrying Alt Vt 00122 Ml over Miller Run in Caledonia County, Vermont. It was built in 1900 and reconstructed in 1995, so it is 125 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. Its operating status is: posted for other load-capacity restriction.

It carries about 4,500 vehicles a day, roughly 6% of them trucks, projected to reach 4,725 by 2028. The structure is 61 ft (18.6 m) long and 16 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesAlt Vt 00122 Ml
CrossesMiller Run
Location1.0 M1 W JCT US.5
RouteState Highway 122
StateVermont
Coordinates44.54204, -72.00991
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating57 US tons
Inventory rating39 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length61 ft (18.6 m)
Longest span51 ft (15.5 m)
Deck width16 ft (4.8 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deck10 ft (3.2 m)

Traffic and service

Average daily traffic4,500 (2018)
Projected traffic4,725 by 2028
Trucks6%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$383,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Alt Vt 00122 Ml over Miller Run built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1995.

What condition is Alt Vt 00122 Ml over Miller Run 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 Alt Vt 00122 Ml over Miller Run carry?

About 4,500 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is Alt Vt 00122 Ml over Miller Run?

The structure is 61 ft (18.6 m) long with a longest span of 51 ft (15.5 m) and a deck 16 ft wide.

Who owns Alt Vt 00122 Ml over Miller Run?

It is owned by the Town or Township Highway Agency.