US Bridges

Mill Street over Shrub Oak Brook

Fair

Westchester County, New York · 5.1 MI NE of Peekskill · Structure no. 000000002262450

Built
1975
50 years old
Condition
Fair
inspected May 2023
Type
Tee Beam
Concrete
Length
38 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 concrete tee beam carrying Mill Street over Shrub Oak Brook in Westchester County, New York. It was built in 1975, so it is 50 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 38 ft (11.6 m) long and 31 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesMill Street
CrossesShrub Oak Brook
Location5.1 MI NE of Peekskill
Coordinates41.33393, -73.84277
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating77.1 US tons
Inventory rating46 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length38 ft (11.6 m)
Longest span35 ft (10.6 m)
Deck width31 ft (9.4 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$830,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mill Street over Shrub Oak Brook built?

It was built in 1975, making it 50 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 May 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 38 ft (11.6 m) long with a longest span of 35 ft (10.6 m) and a deck 31 ft wide.

Who owns Mill Street over Shrub Oak Brook?

It is owned by the Town or Township Highway Agency.