US Bridges

RTE 23 over Nauvo Stream

Poor

Greene County, New York · 0.2 MI W JCT Rts 23 & 296 · Structure no. 000000001017720

Built
1959
66 years old
Condition
Poor
inspected December 2024
Type
Slab
Concrete
Length
28 ft
1 main span
Daily traffic
2,441
2019 count
Owner
State
State Highway Agency

About this bridge

RTE 23 over Nauvo Stream is a concrete slab carrying RTE 23 over Nauvo Stream in Greene County, New York. It was built in 1959, so it is 66 years old, older than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 2,441 vehicles a day, roughly 10% of them trucks, projected to reach 2,603 by 2041. The structure is 28 ft (8.5 m) long and 41 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

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CarriesRTE 23
CrossesNauvo Stream
Location0.2 MI W JCT Rts 23 & 296
RouteState Highway 23
CountyGreene County
StateNew York
Coordinates42.30889, -74.23389
Functional classRural Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating38 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span27 ft (8.2 m)
Deck width41 ft (12.5 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,441 (2019)
Projected traffic2,603 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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$1.6 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 23 over Nauvo Stream built?

It was built in 1959, making it 66 years old in 2025.

What condition is RTE 23 over Nauvo Stream in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2024.

How much traffic does RTE 23 over Nauvo Stream carry?

About 2,441 vehicles per day (2019 count), of which roughly 10% are trucks.

How long is RTE 23 over Nauvo Stream?

The structure is 28 ft (8.5 m) long with a longest span of 27 ft (8.2 m) and a deck 41 ft wide.

Who owns RTE 23 over Nauvo Stream?

It is owned by the State Highway Agency.