US Bridges

Zang Road over Chaumont River

Fair

Jefferson County, New York · 4.0 MI N of Depauville · Structure no. 000000003339240

Built
1938
87 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
33 ft
1 main span
Daily traffic
61
2019 count
Owner
County
County Highway Agency

About this bridge

Zang Road over Chaumont River is a steel stringer/multi-beam or girder carrying Zang Road over Chaumont River in Jefferson County, New York. It was built in 1938, so it is 87 years old, older than the New York average of 53 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.

It carries about 61 vehicles a day, roughly 17% of them trucks, projected to reach 85 by 2039. The structure is 33 ft (10.1 m) long and 21 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesZang Road
CrossesChaumont River
Location4.0 MI N of Depauville
CountyJefferson County
StateNew York
Coordinates44.17507, -76.0153
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating106 US tons
Inventory rating63.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length33 ft (10.1 m)
Longest span31 ft (9.4 m)
Deck width21 ft (6.3 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic61 (2019)
Projected traffic85 by 2039
Trucks17%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$401,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Zang Road over Chaumont River built?

It was built in 1938, making it 87 years old in 2025.

What condition is Zang Road over Chaumont 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 August 2024.

How much traffic does Zang Road over Chaumont River carry?

About 61 vehicles per day (2019 count), of which roughly 17% are trucks.

How long is Zang Road over Chaumont River?

The structure is 33 ft (10.1 m) long with a longest span of 31 ft (9.4 m) and a deck 21 ft wide.

Who owns Zang Road over Chaumont River?

It is owned by the County Highway Agency.