US Bridges

South Guernsey Rd. over Middle Br. White Clay CR

Fair

Chester County, Pennsylvania · London Grove Twp. 45G12 · Structure no. 000000000010669

Built
1985
40 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
2,137
2019 count
Owner
County
County Highway Agency

About this bridge

South Guernsey Rd. over Middle Br. White Clay CR is a prestressed concrete box beam or girders - multiple carrying South Guernsey Rd. over Middle Br. White Clay CR in Chester County, Pennsylvania. It was built in 1985, so it is 40 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 2,137 vehicles a day, roughly 10% of them trucks, projected to reach 2,608 by 2039. The structure is 51 ft (15.5 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesSouth Guernsey Rd.
CrossesMiddle Br. White Clay CR
LocationLondon Grove Twp. 45G12
RouteCity Street 0
CountyChester County
StatePennsylvania
Coordinates39.80251, -75.83427
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating71 US tons
Inventory rating42 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length51 ft (15.5 m)
Longest span51 ft (15.5 m)
Deck width30 ft (9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,137 (2019)
Projected traffic2,608 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was South Guernsey Rd. over Middle Br. White Clay CR built?

It was built in 1985, making it 40 years old in 2025.

What condition is South Guernsey Rd. over Middle Br. White Clay CR 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 June 2023.

How much traffic does South Guernsey Rd. over Middle Br. White Clay CR carry?

About 2,137 vehicles per day (2019 count), of which roughly 10% are trucks.

How long is South Guernsey Rd. over Middle Br. White Clay CR?

The structure is 51 ft (15.5 m) long with a longest span of 51 ft (15.5 m) and a deck 30 ft wide.

Who owns South Guernsey Rd. over Middle Br. White Clay CR?

It is owned by the County Highway Agency.