US Bridges

New Swamp Road over Champlain Canal

PoorPosted for load

Washington County, New York · JCT N Swamp RD & Champ C · Structure no. 000000004418090

Built
1911
114 years old
Condition
Poor
inspected October 2024
Type
Truss - Thru
Steel
Length
282 ft
1 main span
Daily traffic
52
2020 count
Owner
State
State Highway Agency

About this bridge

New Swamp Road over Champlain Canal is a steel truss - thru carrying New Swamp Road over Champlain Canal in Washington County, New York. It was built in 1911, so it is 114 years old, older than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 52 vehicles a day, roughly 10% of them trucks, projected to reach 73 by 2040. The structure is 282 ft (86 m) long and 17 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

Location

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CarriesNew Swamp Road
CrossesChamplain Canal
LocationJCT N Swamp RD & Champ C
CountyWashington County
StateNew York
Coordinates43.3317, -73.51044
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment2: Basically intolerable, requiring high priority of replacement
Operating rating30 US tons
Inventory rating21.1 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckOpen grating
Main spans1 (+2 approach)
Design loadUnknown
Structure length282 ft (86 m)
Longest span181 ft (55.1 m)
Deck width17 ft (5.2 m)
Roadway width15 ft (4.5 m)
Vertical clearance over deck13 ft (4.1 m)

Traffic and service

Average daily traffic52 (2020)
Projected traffic73 by 2040
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed7.5 mi (12 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$5.3 million (2024 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was New Swamp Road over Champlain Canal built?

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

What condition is New Swamp Road over Champlain Canal in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does New Swamp Road over Champlain Canal carry?

About 52 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is New Swamp Road over Champlain Canal?

The structure is 282 ft (86 m) long with a longest span of 181 ft (55.1 m) and a deck 17 ft wide.

Who owns New Swamp Road over Champlain Canal?

It is owned by the State Highway Agency.