US Bridges

CR21 over Nanticoke Creek

Fair

Broome County, New York · 2.5 MI NW of Nanticoke · Structure no. 000000003349510

Built
1979
46 years old
Condition
Fair
inspected April 2024
Type
Slab
Wood or Timber
Length
33 ft
1 main span
Daily traffic
497
2018 count
Owner
County
County Highway Agency

About this bridge

CR21 over Nanticoke Creek is a wood or timber slab carrying CR21 over Nanticoke Creek in Broome County, New York. It was built in 1979, so it is 46 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 497 vehicles a day, roughly 7% of them trucks, projected to reach 696 by 2038. The structure is 33 ft (10.1 m) long and 37 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesCR21
CrossesNanticoke Creek
Location2.5 MI NW of Nanticoke
RouteCounty Highway 0
Coordinates42.30499, -76.08267
Functional classRural Minor 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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42 US tons
Inventory rating27 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckNot applicable
Main spans1
Design loadHS 25 or greater
Structure length33 ft (10.1 m)
Longest span25 ft (7.6 m)
Deck width37 ft (11.3 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic497 (2018)
Projected traffic696 by 2038
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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$678,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CR21 over Nanticoke Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is CR21 over Nanticoke Creek 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 2024.

How much traffic does CR21 over Nanticoke Creek carry?

About 497 vehicles per day (2018 count), of which roughly 7% are trucks.

How long is CR21 over Nanticoke Creek?

The structure is 33 ft (10.1 m) long with a longest span of 25 ft (7.6 m) and a deck 37 ft wide.

Who owns CR21 over Nanticoke Creek?

It is owned by the County Highway Agency.