US Bridges

Mill Brook Road over Mill Brook

Poor

Ulster County, New York · 2.3 MI E of Grant Mills · Structure no. 000000002268940

Built
1991
34 years old
Condition
Poor
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
54 ft
1 main span
Daily traffic
51
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Mill Brook Road over Mill Brook is a steel stringer/multi-beam or girder carrying Mill Brook Road over Mill Brook in Ulster County, New York. It was built in 1991, so it is 34 years old, younger than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 51 vehicles a day, roughly 11% of them trucks, projected to reach 71 by 2039. The structure is 54 ft (16.5 m) long and 23 ft wide.

CarriesMill Brook Road
CrossesMill Brook
Location2.3 MI E of Grant Mills
Coordinates42.08037, -74.63647
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating30 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length54 ft (16.5 m)
Longest span52 ft (15.8 m)
Deck width23 ft (7.1 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic51 (2019)
Projected traffic71 by 2039
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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$1.9 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mill Brook Road over Mill Brook built?

It was built in 1991, making it 34 years old in 2025.

What condition is Mill Brook Road over Mill Brook in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.

How much traffic does Mill Brook Road over Mill Brook carry?

About 51 vehicles per day (2019 count), of which roughly 11% are trucks.

How long is Mill Brook Road over Mill Brook?

The structure is 54 ft (16.5 m) long with a longest span of 52 ft (15.8 m) and a deck 23 ft wide.

Who owns Mill Brook Road over Mill Brook?

It is owned by the Town or Township Highway Agency.