US Bridges

Round Barn Road over Irish Creek

Good

Montgomery County, New York · 2.0 MI W of Glen · Structure no. 000000003310060

Built
2010
15 years old
Condition
Good
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
97 ft
1 main span
Daily traffic
203
2019 count
Owner
County
County Highway Agency

About this bridge

Round Barn Road over Irish Creek is a prestressed concrete box beam or girders - multiple carrying Round Barn Road over Irish Creek in Montgomery County, New York. It was built in 2010, so it is 15 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 203 vehicles a day, roughly 1% of them trucks, projected to reach 284 by 2039. The structure is 97 ft (29.6 m) long and 33 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesRound Barn Road
CrossesIrish Creek
Location2.0 MI W of Glen
Coordinates42.88412, -74.29531
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating44 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length97 ft (29.6 m)
Longest span90 ft (27.4 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic203 (2019)
Projected traffic284 by 2039
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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$1.5 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Round Barn Road over Irish Creek built?

It was built in 2010, making it 15 years old in 2025.

What condition is Round Barn Road over Irish Creek 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 April 2023.

How much traffic does Round Barn Road over Irish Creek carry?

About 203 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is Round Barn Road over Irish Creek?

The structure is 97 ft (29.6 m) long with a longest span of 90 ft (27.4 m) and a deck 33 ft wide.

Who owns Round Barn Road over Irish Creek?

It is owned by the County Highway Agency.