US Bridges

SR4006 over South Branch Plum Creek

Poor

Indiana County, Pennsylvania · Davis NO.2 · Structure no. 000000000019380

Built
1952
73 years old
Condition
Poor
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
60 ft
1 main span
Daily traffic
447
2024 count
Owner
State
State Highway Agency

About this bridge

SR4006 over South Branch Plum Creek is a steel stringer/multi-beam or girder carrying SR4006 over South Branch Plum Creek in Indiana County, Pennsylvania. It was built in 1952, so it is 73 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 447 vehicles a day, roughly 9% of them trucks, projected to reach 635 by 2032. The structure is 60 ft (18.3 m) long and 23 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSR4006
CrossesSouth Branch Plum Creek
LocationDavis NO.2
RouteState Highway 0
Coordinates40.74827, -79.15455
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, 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 inspectionJune 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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating52 US tons
Inventory rating31 US tons

Structure

MaterialSteel
DeckClosed grating
Main spans1
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span58 ft (17.7 m)
Deck width23 ft (7 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic447 (2024)
Projected traffic635 by 2032
Trucks9%
Lanes on structure2
Traffic directionTwo-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 statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$228,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR4006 over South Branch Plum Creek built?

It was built in 1952, making it 73 years old in 2025.

What condition is SR4006 over South Branch Plum Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

How much traffic does SR4006 over South Branch Plum Creek carry?

About 447 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is SR4006 over South Branch Plum Creek?

The structure is 60 ft (18.3 m) long with a longest span of 58 ft (17.7 m) and a deck 23 ft wide.

Who owns SR4006 over South Branch Plum Creek?

It is owned by the State Highway Agency.