US Bridges

Mt Orne Road over Connecticut River

FairPosted for load

Essex County, Vermont · At Vermont State Line · Structure no. 100514B01705141

Built
1911
114 years old, rebuilt 1988
Condition
Fair
inspected September 2024
Type
Truss - Thru
Wood or Timber
Length
266 ft
2 main spans
Daily traffic
658
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mt Orne Road over Connecticut River is a wood or timber truss - thru carrying Mt Orne Road over Connecticut River in Essex County, Vermont. It was built in 1911 and reconstructed in 1988, so it is 114 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. Its operating status is: posted for load restriction.

It carries about 658 vehicles a day, roughly 10% of them trucks, projected to reach 973 by 2043. The structure is 266 ft (81.1 m) long and 15 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesMt Orne Road
CrossesConnecticut River
LocationAt Vermont State Line
RouteState Highway 135
StateVermont
Coordinates44.46019, -71.65279
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating10.8 US tons
Inventory rating7.2 US tons

Structure

Structure typeTruss - Thru
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadUnknown
Structure length266 ft (81.1 m)
Longest span128 ft (39 m)
Deck width15 ft (4.7 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deck13 ft (4 m)

Traffic and service

Average daily traffic658 (2020)
Projected traffic973 by 2043
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mt Orne Road over Connecticut River built?

It was built in 1911, making it 114 years old in 2025. It was reconstructed in 1988.

What condition is Mt Orne Road over Connecticut 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 September 2024.

How much traffic does Mt Orne Road over Connecticut River carry?

About 658 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Mt Orne Road over Connecticut River?

The structure is 266 ft (81.1 m) long with a longest span of 128 ft (39 m) and a deck 15 ft wide.

Who owns Mt Orne Road over Connecticut River?

It is owned by the City or Municipal Highway Agency.