US Bridges

Trythall Road over French Creek

Fair

Chester County, Pennsylvania · S Harmonyville RD 3248K1 · Structure no. 000000000054212

Built
1960
65 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete
Length
30 ft
4 main spans
Daily traffic
200
2017 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Trythall Road over French Creek is a concrete culvert carrying Trythall Road over French Creek in Chester County, Pennsylvania. It was built in 1960, so it is 65 years old, older 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 200 vehicles a day, roughly 10% of them trucks, projected to reach 250 by 2037. The structure is 30 ft (9.1 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesTrythall Road
CrossesFrench Creek
LocationS Harmonyville RD 3248K1
CountyChester County
StatePennsylvania
Coordinates40.18444, -75.75246
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 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 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 rating82 US tons
Inventory rating49.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span6 ft (1.8 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2017)
Projected traffic250 by 2037
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Trythall Road over French Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Trythall Road over French 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 April 2023.

How much traffic does Trythall Road over French Creek carry?

About 200 vehicles per day (2017 count), of which roughly 10% are trucks.

How long is Trythall Road over French Creek?

The structure is 30 ft (9.1 m) long with a longest span of 6 ft (1.8 m) and a deck 24 ft wide.

Who owns Trythall Road over French Creek?

It is owned by the Town or Township Highway Agency.