US Bridges

SR0403 over Mardis Run

Fair

Indiana County, Pennsylvania · Dilltown NO.2 · Structure no. 000000000019126

Built
1956
69 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete
Length
28 ft
1 main span
Daily traffic
867
2024 count
Owner
State
State Highway Agency

About this bridge

SR0403 over Mardis Run is a concrete culvert carrying SR0403 over Mardis Run in Indiana County, Pennsylvania. It was built in 1956, so it is 69 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 867 vehicles a day, roughly 12% of them trucks, projected to reach 989 by 2032. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSR0403
CrossesMardis Run
LocationDilltown NO.2
RouteState Highway 403
CountyIndiana County
StatePennsylvania
Coordinates40.47672, -78.99268
Functional classRural Major Collector

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span28 ft (8.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic867 (2024)
Projected traffic989 by 2032
Trucks12%
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

OwnerState Highway Agency
Maintained byState 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 SR0403 over Mardis Run built?

It was built in 1956, making it 69 years old in 2025.

What condition is SR0403 over Mardis 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 January 2024.

How much traffic does SR0403 over Mardis Run carry?

About 867 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is SR0403 over Mardis Run?

The structure is 28 ft (8.5 m) long with a longest span of 28 ft (8.5 m).

Who owns SR0403 over Mardis Run?

It is owned by the State Highway Agency.