US Bridges

County Road 4 over Alder Bottom Crk

Good

Chautauqua County, New York · 2.6 MI NW of N Clymer · Structure no. 000000003325570

Built
2021
4 years old
Condition
Good
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
75 ft
1 main span
Daily traffic
100
2018 count
Owner
County
County Highway Agency

About this bridge

County Road 4 over Alder Bottom Crk is a prestressed concrete box beam or girders - multiple carrying County Road 4 over Alder Bottom Crk in Chautauqua County, New York. It was built in 2021, so it is 4 years old, younger 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 100 vehicles a day, roughly 8% of them trucks, projected to reach 140 by 2038. The structure is 75 ft (22.9 m) long and 29 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesCounty Road 4
CrossesAlder Bottom Crk
Location2.6 MI NW of N Clymer
RouteCounty Highway 0
CountyChautauqua County
StateNew York
Coordinates42.10311, -79.60732
Functional classRural Minor Collector

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.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating109 US tons
Inventory rating65 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 25 or greater
Structure length75 ft (22.9 m)
Longest span70 ft (21.3 m)
Deck width29 ft (8.7 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deck107 ft (32.7 m)

Traffic and service

Average daily traffic100 (2018)
Projected traffic140 by 2038
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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$1.9 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 4 over Alder Bottom Crk built?

It was built in 2021, making it 4 years old in 2025.

What condition is County Road 4 over Alder Bottom Crk 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 April 2024.

How much traffic does County Road 4 over Alder Bottom Crk carry?

About 100 vehicles per day (2018 count), of which roughly 8% are trucks.

How long is County Road 4 over Alder Bottom Crk?

The structure is 75 ft (22.9 m) long with a longest span of 70 ft (21.3 m) and a deck 29 ft wide.

Who owns County Road 4 over Alder Bottom Crk?

It is owned by the County Highway Agency.