US Bridges

West First Avenue over Donny Brook

Fair

Montgomery County, Pennsylvania · N of Clahor Ave 3141-E10 · Structure no. 000000000057195

Built
1996
29 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
500
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

West First Avenue over Donny Brook is a concrete culvert carrying West First Avenue over Donny Brook in Montgomery County, Pennsylvania. It was built in 1996, so it is 29 years old, younger than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 500 vehicles a day, roughly 1% of them trucks, projected to reach 600 by 2040. The structure is 22 ft (6.7 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesWest First Avenue
CrossesDonny Brook
LocationN of Clahor Ave 3141-E10
RouteCity Street 0
CountyMontgomery County
StatePennsylvania
Coordinates40.19, -75.47169
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.9 US tons
Inventory rating54 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width40 ft (12.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2020)
Projected traffic600 by 2040
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was West First Avenue over Donny Brook built?

It was built in 1996, making it 29 years old in 2025.

What condition is West First Avenue over Donny 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 January 2024.

How much traffic does West First Avenue over Donny Brook carry?

About 500 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is West First Avenue over Donny Brook?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m) and a deck 40 ft wide.

Who owns West First Avenue over Donny Brook?

It is owned by the Town or Township Highway Agency.