US Bridges

Thomas Road (T576) over Trout Creek

FairPosted for load

Chester County, Pennsylvania · Tredyffrin Twp. 24H01 · Structure no. 000000000010726

Built
1925
100 years old
Condition
Fair
inspected December 2022
Type
Slab
Concrete Continuous
Length
36 ft
2 main spans
Daily traffic
1,896
2019 count
Owner
County
County Highway Agency

About this bridge

Thomas Road (T576) over Trout Creek is a concrete continuous slab carrying Thomas Road (T576) over Trout Creek in Chester County, Pennsylvania. It was built in 1925, so it is 100 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 1,896 vehicles a day, roughly 4% of them trucks, projected to reach 2,313 by 2039. The structure is 36 ft (11 m) long and 19 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesThomas Road (T576)
CrossesTrout Creek
LocationTredyffrin Twp. 24H01
RouteCity Street 0
CountyChester County
StatePennsylvania
Coordinates40.08338, -75.42743
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating38 US tons
Inventory rating23 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length36 ft (11 m)
Longest span15 ft (4.6 m)
Deck width19 ft (5.9 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,896 (2019)
Projected traffic2,313 by 2039
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for 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 Thomas Road (T576) over Trout Creek built?

It was built in 1925, making it 100 years old in 2025.

What condition is Thomas Road (T576) over Trout 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 December 2022.

How much traffic does Thomas Road (T576) over Trout Creek carry?

About 1,896 vehicles per day (2019 count), of which roughly 4% are trucks.

How long is Thomas Road (T576) over Trout Creek?

The structure is 36 ft (11 m) long with a longest span of 15 ft (4.6 m) and a deck 19 ft wide.

Who owns Thomas Road (T576) over Trout Creek?

It is owned by the County Highway Agency.