US Bridges

Mill Street over Shrub Oak Brook

Fair

Westchester County, New York · 1 Mile NE of Mohegan Lake · Structure no. 000000002262460

Built
1994
31 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
45 ft
1 main span
Daily traffic
4,496
2016 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Mill Street over Shrub Oak Brook is a prestressed concrete box beam or girders - multiple carrying Mill Street over Shrub Oak 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 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 4,496 vehicles a day, roughly 3% of them trucks, projected to reach 5,562 by 2041. The structure is 45 ft (13.7 m) long and 33 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesMill Street
CrossesShrub Oak Brook
Location1 Mile NE of Mohegan Lake
Coordinates41.33473, -73.84261
Functional classUrban 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating86 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span40 ft (12.1 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deck107 ft (32.7 m)

Traffic and service

Average daily traffic4,496 (2016)
Projected traffic5,562 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$1.1 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mill Street over Shrub Oak Brook built?

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

What condition is Mill Street over Shrub Oak 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 April 2023.

How much traffic does Mill Street over Shrub Oak Brook carry?

About 4,496 vehicles per day (2016 count), of which roughly 3% are trucks.

How long is Mill Street over Shrub Oak Brook?

The structure is 45 ft (13.7 m) long with a longest span of 40 ft (12.1 m) and a deck 33 ft wide.

Who owns Mill Street over Shrub Oak Brook?

It is owned by the Town or Township Highway Agency.