US Bridges

Mill Brook Road over Mill Brook

Fair

Delaware County, New York · 4.5 MI S of Margretville · Structure no. 000000003353010

Built
1995
30 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
57 ft
1 main span
Daily traffic
32
2017 count
Owner
County
County 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 Delaware County, New York. It was built in 1995, so it is 30 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 5 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 32 vehicles a day, roughly 14% of them trucks, projected to reach 45 by 2037. The structure is 57 ft (17.4 m) long and 21 ft wide. If it were closed, the detour would be 23 mi (37 km).

Location

Open in Google Maps
CarriesMill Brook Road
CrossesMill Brook
Location4.5 MI S of Margretville
CountyDelaware County
StateNew York
Coordinates42.08054, -74.66304
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure8 Very GoodNo problems noted.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being 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 rating47 US tons
Inventory rating28 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length57 ft (17.4 m)
Longest span55 ft (16.7 m)
Deck width21 ft (6.4 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32 (2017)
Projected traffic45 by 2037
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$791,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mill Brook Road over Mill Brook built?

It was built in 1995, making it 30 years old in 2025.

What condition is Mill Brook Road over Mill 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 October 2024.

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

About 32 vehicles per day (2017 count), of which roughly 14% are trucks.

How long is Mill Brook Road over Mill Brook?

The structure is 57 ft (17.4 m) long with a longest span of 55 ft (16.7 m) and a deck 21 ft wide.

Who owns Mill Brook Road over Mill Brook?

It is owned by the County Highway Agency.