US Bridges

County Road 21 over Trib Colonel Bills Crk

PoorPosted for load

Steuben County, New York · 0.4 MI E of Int. of Nys R · Structure no. 000000003334680

Built
1971
54 years old, rebuilt 1993
Condition
Poor
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
24 ft
1 main span
Daily traffic
250
2021 count
Owner
County
County Highway Agency

About this bridge

County Road 21 over Trib Colonel Bills Crk is a steel stringer/multi-beam or girder carrying County Road 21 over Trib Colonel Bills Crk in Steuben County, New York. It was built in 1971 and reconstructed in 1993, so it is 54 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. Its operating status is: posted for other load-capacity restriction.

It carries about 250 vehicles a day, roughly 4% of them trucks, projected to reach 350 by 2041. The structure is 24 ft (7.3 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Road 21
CrossesTrib Colonel Bills Crk
Location0.4 MI E of Int. of Nys R
RouteCounty Highway 0
Coordinates42.19419, -77.54515
Functional classRural Minor Collector

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
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating75 US tons
Inventory rating44 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span23 ft (7 m)
Deck width30 ft (9.2 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2021)
Projected traffic350 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$525,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 21 over Trib Colonel Bills Crk built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 1993.

What condition is County Road 21 over Trib Colonel Bills Crk 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 November 2024.

How much traffic does County Road 21 over Trib Colonel Bills Crk carry?

About 250 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is County Road 21 over Trib Colonel Bills Crk?

The structure is 24 ft (7.3 m) long with a longest span of 23 ft (7 m) and a deck 30 ft wide.

Who owns County Road 21 over Trib Colonel Bills Crk?

It is owned by the County Highway Agency.