US Bridges

Vt 00030 Ml over Rock River

Fair

Windham County, Vermont · 8.9 MI N Jct. U.S.5 · Structure no. 200015000913052

Built
1972
53 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
155 ft
1 main span
Daily traffic
5,900
2018 count
Owner
State
State Highway Agency

About this bridge

Vt 00030 Ml over Rock River is a steel stringer/multi-beam or girder carrying Vt 00030 Ml over Rock River in Windham County, Vermont. It was built in 1972, so it is 53 years old, younger 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 5,900 vehicles a day, roughly 9% of them trucks, projected to reach 6,195 by 2028. The structure is 155 ft (47.2 m) long and 43 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

CarriesVt 00030 Ml
CrossesRock River
Location8.9 MI N Jct. U.S.5
RouteState Highway 30
StateVermont
Coordinates42.94727, -72.64137
Functional classRural Minor Arterial

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating73 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length155 ft (47.2 m)
Longest span150 ft (45.7 m)
Deck width43 ft (13.1 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,900 (2018)
Projected traffic6,195 by 2028
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 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 00030 Ml over Rock River built?

It was built in 1972, making it 53 years old in 2025.

What condition is Vt 00030 Ml over Rock 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 May 2023.

How much traffic does Vt 00030 Ml over Rock River carry?

About 5,900 vehicles per day (2018 count), of which roughly 9% are trucks.

How long is Vt 00030 Ml over Rock River?

The structure is 155 ft (47.2 m) long with a longest span of 150 ft (45.7 m) and a deck 43 ft wide.

Who owns Vt 00030 Ml over Rock River?

It is owned by the State Highway Agency.