US Bridges

Forest Creek Drive over Tannery Run

Fair

Montgomery County, Pennsylvania · N of Cedar RD 3257H5 · Structure no. 000000000057158

Built
1993
32 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
31 ft
2 main spans
Daily traffic
25
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Forest Creek Drive over Tannery Run is a concrete culvert carrying Forest Creek Drive over Tannery Run in Montgomery County, Pennsylvania. It was built in 1993, so it is 32 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 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 25 vehicles a day, roughly 1% of them trucks, projected to reach 35 by 2039. The structure is 31 ft (9.4 m) long and 40 ft wide.

Location

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CarriesForest Creek Drive
CrossesTannery Run
LocationN of Cedar RD 3257H5
CountyMontgomery County
StatePennsylvania
Coordinates40.16239, -75.2045
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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span14 ft (4.3 m)
Deck width40 ft (12.2 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2019)
Projected traffic35 by 2039
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Forest Creek Drive over Tannery Run built?

It was built in 1993, making it 32 years old in 2025.

What condition is Forest Creek Drive over Tannery Run 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 Forest Creek Drive over Tannery Run carry?

About 25 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is Forest Creek Drive over Tannery Run?

The structure is 31 ft (9.4 m) long with a longest span of 14 ft (4.3 m) and a deck 40 ft wide.

Who owns Forest Creek Drive over Tannery Run?

It is owned by the Town or Township Highway Agency.