US Bridges

RTE 177 over Deer River

Fair

Lewis County, New York · 3.7 MI SE JCT Rts 177+194 · Structure no. 000000001039370

Built
1933
92 years old, rebuilt 1992
Condition
Fair
inspected April 2023
Type
Girder and Floorbeam System
Steel Continuous
Length
162 ft
3 main spans
Daily traffic
1,637
2021 count
Owner
State
State Highway Agency

About this bridge

RTE 177 over Deer River is a steel continuous girder and floorbeam system carrying RTE 177 over Deer River in Lewis County, New York. It was built in 1933 and reconstructed in 1992, so it is 92 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 1,637 vehicles a day, roughly 14% of them trucks, projected to reach 1,707 by 2041. The structure is 162 ft (49.4 m) long and 32 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesRTE 177
CrossesDeer River
Location3.7 MI SE JCT Rts 177+194
RouteState Highway 177
CountyLewis County
StateNew York
Coordinates43.80033, -75.74642
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating52 US tons
Inventory rating31 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length162 ft (49.4 m)
Longest span74 ft (22.5 m)
Deck width32 ft (9.9 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,637 (2021)
Projected traffic1,707 by 2041
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$2.5 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 177 over Deer River built?

It was built in 1933, making it 92 years old in 2025. It was reconstructed in 1992.

What condition is RTE 177 over Deer 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 April 2023.

How much traffic does RTE 177 over Deer River carry?

About 1,637 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is RTE 177 over Deer River?

The structure is 162 ft (49.4 m) long with a longest span of 74 ft (22.5 m) and a deck 32 ft wide.

Who owns RTE 177 over Deer River?

It is owned by the State Highway Agency.