US Bridges

Mansion Road over South Br. French Creek

Fair

Chester County, Pennsylvania · Nr. Reading Furnace 11H1 · Structure no. 000000000010631

Built
1904
121 years old, rebuilt 2021
Condition
Fair
inspected April 2023
Type
Arch - Deck
Masonry
Length
27 ft
1 main span
Daily traffic
136
2024 count
Owner
State
State Highway Agency

About this bridge

Mansion Road over South Br. French Creek is a masonry arch - deck carrying Mansion Road over South Br. French Creek in Chester County, Pennsylvania. It was built in 1904 and reconstructed in 2021, so it is 121 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 136 vehicles a day, roughly 13% of them trucks, projected to reach 329 by 2032. The structure is 27 ft (8.2 m) long and 16 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesMansion Road
CrossesSouth Br. French Creek
LocationNr. Reading Furnace 11H1
RouteState Highway 0
CountyChester County
StatePennsylvania
Coordinates40.14749, -75.76852
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
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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64 US tons
Inventory rating38 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans1
Design loadH 15
Structure length27 ft (8.2 m)
Longest span25 ft (7.6 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic136 (2024)
Projected traffic329 by 2032
Trucks13%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$70,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Mansion Road over South Br. French Creek built?

It was built in 1904, making it 121 years old in 2025. It was reconstructed in 2021.

What condition is Mansion Road over South Br. 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 Mansion Road over South Br. French Creek carry?

About 136 vehicles per day (2024 count), of which roughly 13% are trucks.

How long is Mansion Road over South Br. French Creek?

The structure is 27 ft (8.2 m) long with a longest span of 25 ft (7.6 m) and a deck 16 ft wide.

Who owns Mansion Road over South Br. French Creek?

It is owned by the State Highway Agency.