US Bridges

RTE 9 over Schroon River

Fair

Essex County, New York · Rt 9 2.7 MI S Exit 30 · Structure no. 000000001005830

Built
1928
97 years old, rebuilt 1990
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
44 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 1928 and reconstructed in 1990, so it is 97 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 235 vehicles a day, roughly 5% of them trucks, projected to reach 245 by 2041. The structure is 44 ft (13.4 m) long and 30 ft wide. If it were closed, the detour would be 28 mi (45 km).

Location

Open in Google Maps
CarriesRTE 9
CrossesSchroon River
LocationRt 9 2.7 MI S Exit 30
RouteU.S. Route 9
CountyEssex County
StateNew York
Coordinates44.04359, -73.67823
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating102 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span40 ft (12.1 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 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$976,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 9 over Schroon River built?

It was built in 1928, making it 97 years old in 2025. It was reconstructed in 1990.

What condition is RTE 9 over Schroon 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 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 44 ft (13.4 m) long with a longest span of 40 ft (12.1 m) and a deck 30 ft wide.

Who owns RTE 9 over Schroon River?

It is owned by the State Highway Agency.