US Bridges

Blair Road over Mill Brook

Good

Warren County, New York · 1 MI E of Adirondack · Structure no. 000000002203370

Built
2016
9 years old
Condition
Good
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
48 ft
1 main span
Daily traffic
7
2019 count
Owner
County
County Highway Agency

About this bridge

Blair Road over Mill Brook is a prestressed concrete box beam or girders - multiple carrying Blair Road over Mill Brook in Warren County, New York. It was built in 2016, so it is 9 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 7 vehicles a day, projected to reach 10 by 2039. The structure is 48 ft (14.6 m) long and 19 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesBlair Road
CrossesMill Brook
Location1 MI E of Adirondack
Coordinates43.76826, -73.74312
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
Deck9 ExcellentNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating110.1 US tons
Inventory rating74 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length48 ft (14.6 m)
Longest span45 ft (13.7 m)
Deck width19 ft (5.9 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7 (2019)
Projected traffic10 by 2039
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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$416,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Blair Road over Mill Brook built?

It was built in 2016, making it 9 years old in 2025.

What condition is Blair Road over Mill 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 June 2024.

How much traffic does Blair Road over Mill Brook carry?

About 7 vehicles per day (2019 count).

How long is Blair Road over Mill Brook?

The structure is 48 ft (14.6 m) long with a longest span of 45 ft (13.7 m) and a deck 19 ft wide.

Who owns Blair Road over Mill Brook?

It is owned by the County Highway Agency.