US Bridges

Old Mill Road over Trib to Mingo Creek

Fair

Montgomery County, Pennsylvania · W of Missmer DR · Structure no. 000000000057200

Built
1988
37 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
250
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Old Mill Road over Trib to Mingo Creek is a concrete culvert carrying Old Mill Road over Trib to Mingo Creek in Montgomery County, Pennsylvania. It was built in 1988, so it is 37 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 250 vehicles a day, roughly 1% of them trucks, projected to reach 300 by 2039. The structure is 21 ft (6.4 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesOld Mill Road
CrossesTrib to Mingo Creek
LocationW of Missmer DR
RouteCity Street 0
Coordinates40.19231, -75.51931
Functional classUrban 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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width38 ft (11.6 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2019)
Projected traffic300 by 2039
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 Old Mill Road over Trib to Mingo Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is Old Mill Road over Trib to Mingo Creek 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 November 2023.

How much traffic does Old Mill Road over Trib to Mingo Creek carry?

About 250 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is Old Mill Road over Trib to Mingo Creek?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 38 ft wide.

Who owns Old Mill Road over Trib to Mingo Creek?

It is owned by the Town or Township Highway Agency.