US Bridges

RTE 9 over Schroon River

Good

Essex County, New York · Rt 9 1.5 Miles S Exit 30 · Structure no. 000000001005840

Built
1998
27 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
93 ft
1 main span
Daily traffic
235
2021 count
Owner
State
State Highway Agency

About this bridge

RTE 9 over Schroon River is a steel stringer/multi-beam or girder carrying RTE 9 over Schroon River in Essex County, New York. It was built in 1998, so it is 27 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 235 vehicles a day, roughly 5% of them trucks, projected to reach 245 by 2041. The structure is 93 ft (28.3 m) long and 35 ft wide. If it were closed, the detour would be 28 mi (45 km).

CarriesRTE 9
CrossesSchroon River
LocationRt 9 1.5 Miles S Exit 30
RouteU.S. Route 9
Coordinates44.0553, -73.66356
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96 US tons
Inventory rating58 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length93 ft (28.3 m)
Longest span89 ft (27.1 m)
Deck width35 ft (10.8 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic235 (2021)
Projected traffic245 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed28 mi (45 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$1.7 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 9 over Schroon River built?

It was built in 1998, making it 27 years old in 2025.

What condition is RTE 9 over Schroon 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 June 2024.

How much traffic does RTE 9 over Schroon River carry?

About 235 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is RTE 9 over Schroon River?

The structure is 93 ft (28.3 m) long with a longest span of 89 ft (27.1 m) and a deck 35 ft wide.

Who owns RTE 9 over Schroon River?

It is owned by the State Highway Agency.