US Bridges

RTE 120 over Blind Brook

Good

Westchester County, New York · 06 MI NW JCT 120 & Nethry · Structure no. 000000001037320

Built
1994
31 years old
Condition
Good
inspected December 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
49 ft
1 main span
Daily traffic
4,771
2017 count
Owner
State
State Highway Agency

About this bridge

RTE 120 over Blind Brook is a prestressed concrete box beam or girders - multiple carrying RTE 120 over Blind Brook in Westchester County, New York. It was built in 1994, so it is 31 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 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 4,771 vehicles a day, roughly 3% of them trucks, projected to reach 5,795 by 2041. The structure is 49 ft (14.9 m) long and 42 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRTE 120
CrossesBlind Brook
Location06 MI NW JCT 120 & Nethry
RouteState Highway 120
Coordinates40.99391, -73.68662
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating32 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length49 ft (14.9 m)
Longest span46 ft (14 m)
Deck width42 ft (12.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,771 (2017)
Projected traffic5,795 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$1.1 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RTE 120 over Blind Brook built?

It was built in 1994, making it 31 years old in 2025.

What condition is RTE 120 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 December 2024.

How much traffic does RTE 120 over Blind Brook carry?

About 4,771 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is RTE 120 over Blind Brook?

The structure is 49 ft (14.9 m) long with a longest span of 46 ft (14 m) and a deck 42 ft wide.

Who owns RTE 120 over Blind Brook?

It is owned by the State Highway Agency.