US Bridges

County Road 104 over Blind Brook

Good

Westchester County, New York · 1.3 MI W of Port Chester · Structure no. 000000003358500

Built
1957
68 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete Continuous
Length
34 ft
2 main spans
Daily traffic
8,028
2020 count
Owner
County
County Highway Agency

About this bridge

County Road 104 over Blind Brook is a concrete continuous culvert carrying County Road 104 over Blind Brook in Westchester County, New York. It was built in 1957, so it is 68 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 8,028 vehicles a day, roughly 2% of them trucks, projected to reach 9,933 by 2041. The structure is 34 ft (10.4 m) long. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesCounty Road 104
CrossesBlind Brook
Location1.3 MI W of Port Chester
RouteCounty Highway 0
CountyWestchester County
StateNew York
Coordinates41.00473, -73.69247
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length34 ft (10.4 m)
Longest span15 ft (4.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,028 (2020)
Projected traffic9,933 by 2041
Trucks2%
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$880,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 104 over Blind Brook built?

It was built in 1957, making it 68 years old in 2025.

What condition is County Road 104 over Blind Brook 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 May 2023.

How much traffic does County Road 104 over Blind Brook carry?

About 8,028 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is County Road 104 over Blind Brook?

The structure is 34 ft (10.4 m) long with a longest span of 15 ft (4.5 m).

Who owns County Road 104 over Blind Brook?

It is owned by the County Highway Agency.