US Bridges

RTE 20 over RTE 166

Good

Otsego County, New York · JCT US 20 & SH 166 · Structure no. 000000001015879

Built
1954
71 years old, rebuilt 2023
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
67 ft
1 main span
Daily traffic
1,723
2020 count
Owner
State
State Highway Agency

About this bridge

RTE 20 over RTE 166 is a steel stringer/multi-beam or girder carrying RTE 20 over RTE 166 in Otsego County, New York. It was built in 1954 and reconstructed in 2023, so it is 71 years old, older 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 1,723 vehicles a day, roughly 18% of them trucks, projected to reach 1,739 by 2041. The structure is 67 ft (20.4 m) long and 101 ft wide. If it were closed, the detour would be 28 mi (45 km).

Location

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CarriesRTE 20
CrossesRTE 166
LocationJCT US 20 & SH 166
RouteU.S. Route 20
CountyOtsego County
StateNew York
Coordinates42.82115, -74.73557
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81 US tons
Inventory rating48 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length67 ft (20.4 m)
Longest span63 ft (19.2 m)
Deck width101 ft (30.8 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,723 (2020)
Projected traffic1,739 by 2041
Trucks18%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed28 mi (45 km)
TollOn a free road
National Highway SystemYes

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$6.5 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was RTE 20 over RTE 166 built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 2023.

What condition is RTE 20 over RTE 166 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 December 2023.

How much traffic does RTE 20 over RTE 166 carry?

About 1,723 vehicles per day (2020 count), of which roughly 18% are trucks.

How long is RTE 20 over RTE 166?

The structure is 67 ft (20.4 m) long with a longest span of 63 ft (19.2 m) and a deck 101 ft wide.

Who owns RTE 20 over RTE 166?

It is owned by the State Highway Agency.