US Bridges

RTE 9 over Little Chazy River

Good

Clinton County, New York · In Town of Chazy · Structure no. 000000001006030

Built
1990
35 years old
Condition
Good
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
67 ft
1 main span
Daily traffic
3,520
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 9 over Little Chazy River is a prestressed concrete box beam or girders - multiple carrying RTE 9 over Little Chazy River in Clinton County, New York. It was built in 1990, so it is 35 years old, younger than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,520 vehicles a day, roughly 10% of them trucks, projected to reach 3,541 by 2041. The structure is 67 ft (20.4 m) long and 51 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesRTE 9
CrossesLittle Chazy River
LocationIn Town of Chazy
RouteState Highway 9
Coordinates44.88968, -73.43731
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating59 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length67 ft (20.4 m)
Longest span62 ft (18.8 m)
Deck width51 ft (15.6 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,520 (2020)
Projected traffic3,541 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$1.4 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 9 over Little Chazy River built?

It was built in 1990, making it 35 years old in 2025.

What condition is RTE 9 over Little Chazy River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does RTE 9 over Little Chazy River carry?

About 3,520 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is RTE 9 over Little Chazy River?

The structure is 67 ft (20.4 m) long with a longest span of 62 ft (18.8 m) and a deck 51 ft wide.

Who owns RTE 9 over Little Chazy River?

It is owned by the State Highway Agency.