US Bridges

Vt 0004A Alt over Castleton River

Fair

Rutland County, Vermont · 0.4 MI E Jct. VT.30 · Structure no. 200142000411032

Built
1962
63 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
128 ft
2 main spans
Daily traffic
4,600
2018 count
Owner
State
State Highway Agency

About this bridge

Vt 0004A Alt over Castleton River is a steel continuous stringer/multi-beam or girder carrying Vt 0004A Alt over Castleton River in Rutland County, Vermont. It was built in 1962, so it is 63 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 6 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 4,600 vehicles a day, roughly 6% of them trucks, projected to reach 4,830 by 2028. The structure is 128 ft (39 m) long and 35 ft wide.

Location

Open in Google Maps
CarriesVt 0004A Alt
CrossesCastleton River
Location0.4 MI E Jct. VT.30
RouteState Highway 4A
CountyRutland County
StateVermont
Coordinates43.60744, -73.20015
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 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 rating67 US tons
Inventory rating44 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length128 ft (39 m)
Longest span62 ft (18.9 m)
Deck width35 ft (10.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,600 (2018)
Projected traffic4,830 by 2028
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.6 million (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Vt 0004A Alt over Castleton River built?

It was built in 1962, making it 63 years old in 2025.

What condition is Vt 0004A Alt over Castleton River 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 2023.

How much traffic does Vt 0004A Alt over Castleton River carry?

About 4,600 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is Vt 0004A Alt over Castleton River?

The structure is 128 ft (39 m) long with a longest span of 62 ft (18.9 m) and a deck 35 ft wide.

Who owns Vt 0004A Alt over Castleton River?

It is owned by the State Highway Agency.