US Bridges

Dunbar Street over Redstone Creek

Fair

Fayette County, Pennsylvania · Dunbar Street · Structure no. 000000000017157

Built
1997
28 years old
Condition
Fair
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
44 ft
1 main span
Daily traffic
3,500
2006 count
Owner
City
City or Municipal Highway Agency

About this bridge

Dunbar Street over Redstone Creek is a prestressed concrete box beam or girders - multiple carrying Dunbar Street over Redstone Creek in Fayette County, Pennsylvania. It was built in 1997, so it is 28 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 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 3,500 vehicles a day, roughly 5% of them trucks, projected to reach 3,500 by 2023. The structure is 44 ft (13.4 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesDunbar Street
CrossesRedstone Creek
LocationDunbar Street
RouteCity Street 0D0BR
Coordinates39.89637, -79.72326
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
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 rating85 US tons
Inventory rating50 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length44 ft (13.4 m)
Longest span42 ft (12.8 m)
Deck width32 ft (9.8 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,500 (2006)
Projected traffic3,500 by 2023
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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$56,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Dunbar Street over Redstone Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is Dunbar Street over Redstone 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 2024.

How much traffic does Dunbar Street over Redstone Creek carry?

About 3,500 vehicles per day (2006 count), of which roughly 5% are trucks.

How long is Dunbar Street over Redstone Creek?

The structure is 44 ft (13.4 m) long with a longest span of 42 ft (12.8 m) and a deck 32 ft wide.

Who owns Dunbar Street over Redstone Creek?

It is owned by the City or Municipal Highway Agency.