US Bridges

SR4002 over Dark Hollow Run

Fair

Indiana County, Pennsylvania · Dark Hollow · Structure no. 000000000019374

Built
1993
32 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete
Length
27 ft
1 main span
Daily traffic
1,168
2024 count
Owner
State
State Highway Agency

About this bridge

SR4002 over Dark Hollow Run is a concrete slab carrying SR4002 over Dark Hollow Run in Indiana County, Pennsylvania. It was built in 1993, so it is 32 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 5 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 1,168 vehicles a day, roughly 31% of them trucks, projected to reach 620 by 2032. The structure is 27 ft (8.2 m) long and 30 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesSR4002
CrossesDark Hollow Run
LocationDark Hollow
RouteState Highway 0
CountyIndiana County
StatePennsylvania
Coordinates40.6634, -79.25681
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
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating54 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length27 ft (8.2 m)
Longest span26 ft (7.9 m)
Deck width30 ft (9 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,168 (2024)
Projected traffic620 by 2032
Trucks31%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 SR4002 over Dark Hollow Run built?

It was built in 1993, making it 32 years old in 2025.

What condition is SR4002 over Dark Hollow 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 October 2024.

How much traffic does SR4002 over Dark Hollow Run carry?

About 1,168 vehicles per day (2024 count), of which roughly 31% are trucks.

How long is SR4002 over Dark Hollow Run?

The structure is 27 ft (8.2 m) long with a longest span of 26 ft (7.9 m) and a deck 30 ft wide.

Who owns SR4002 over Dark Hollow Run?

It is owned by the State Highway Agency.