US Bridges

Mill Brook Road over Belle Ayr Brook

Good

Ulster County, New York · 4 Miles E of Grant Mills · Structure no. 000000002224250

Built
2019
6 years old
Condition
Good
inspected October 2023
Type
Slab
Concrete
Length
25 ft
1 main span
Daily traffic
51
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Mill Brook Road over Belle Ayr Brook is a concrete slab carrying Mill Brook Road over Belle Ayr Brook in Ulster County, New York. It was built in 2019, so it is 6 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 51 vehicles a day, roughly 11% of them trucks, projected to reach 71 by 2039. The structure is 25 ft (7.6 m) long and 18 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

Open in Google Maps
CarriesMill Brook Road
CrossesBelle Ayr Brook
Location4 Miles E of Grant Mills
CountyUlster County
StateNew York
Coordinates42.07161, -74.60875
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable 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 alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating85.6 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span24 ft (7.3 m)
Deck width18 ft (5.5 m)
Roadway width17 ft (5.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic51 (2019)
Projected traffic71 by 2039
Trucks11%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 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$295,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mill Brook Road over Belle Ayr Brook built?

It was built in 2019, making it 6 years old in 2025.

What condition is Mill Brook Road over Belle Ayr 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 October 2023.

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

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

How long is Mill Brook Road over Belle Ayr Brook?

The structure is 25 ft (7.6 m) long with a longest span of 24 ft (7.3 m) and a deck 18 ft wide.

Who owns Mill Brook Road over Belle Ayr Brook?

It is owned by the Town or Township Highway Agency.