US Bridges

County Road 3 over Big Black Brook

Fair

Clinton County, New York · 1.3 MI N Black Brook · Structure no. 000000003336000

Built
1999
26 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
304
2021 count
Owner
County
County Highway Agency

About this bridge

County Road 3 over Big Black Brook is a prestressed concrete box beam or girders - multiple carrying County Road 3 over Big Black Brook in Clinton County, New York. It was built in 1999, so it is 26 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 304 vehicles a day, roughly 10% of them trucks, projected to reach 426 by 2041. The structure is 40 ft (12.2 m) long and 29 ft wide. If it were closed, the detour would be 25.5 mi (41 km).

Location

Open in Google Maps
CarriesCounty Road 3
CrossesBig Black Brook
Location1.3 MI N Black Brook
RouteCounty Highway 0
CountyClinton County
StateNew York
Coordinates44.47739, -73.74646
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
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 rating75 US tons
Inventory rating45 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length40 ft (12.2 m)
Longest span38 ft (11.5 m)
Deck width29 ft (8.9 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic304 (2021)
Projected traffic426 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed25.5 mi (41 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 proposedDeck replacement with only incidental widening
Estimated improvement cost$825,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 3 over Big Black Brook built?

It was built in 1999, making it 26 years old in 2025.

What condition is County Road 3 over Big Black Brook 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 July 2023.

How much traffic does County Road 3 over Big Black Brook carry?

About 304 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is County Road 3 over Big Black Brook?

The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.5 m) and a deck 29 ft wide.

Who owns County Road 3 over Big Black Brook?

It is owned by the County Highway Agency.