US Bridges

CO Road 27 over Little River

Fair

St. Lawrence County, New York · 3 MI SE of Canton · Structure no. 000000003340630

Built
1986
39 years old, rebuilt 1997
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
90 ft
1 main span
Daily traffic
1,829
2018 count
Owner
County
County Highway Agency

About this bridge

CO Road 27 over Little River is a steel stringer/multi-beam or girder carrying CO Road 27 over Little River in St. Lawrence County, New York. It was built in 1986 and reconstructed in 1997, so it is 39 years old, younger 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 6 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 1,829 vehicles a day, roughly 6% of them trucks, projected to reach 1,908 by 2041. The structure is 90 ft (27.4 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesCO Road 27
CrossesLittle River
Location3 MI SE of Canton
RouteCounty Highway 0
CountySt. Lawrence County
StateNew York
Coordinates44.55632, -75.11341
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating100 US tons
Inventory rating60 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length90 ft (27.4 m)
Longest span87 ft (26.5 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,829 (2018)
Projected traffic1,908 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$1.3 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CO Road 27 over Little River built?

It was built in 1986, making it 39 years old in 2025. It was reconstructed in 1997.

What condition is CO Road 27 over Little 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 May 2023.

How much traffic does CO Road 27 over Little River carry?

About 1,829 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is CO Road 27 over Little River?

The structure is 90 ft (27.4 m) long with a longest span of 87 ft (26.5 m) and a deck 33 ft wide.

Who owns CO Road 27 over Little River?

It is owned by the County Highway Agency.