US Bridges

Markman Park Road over Big Sewickley Creek

Fair

Allegheny County, Pennsylvania · 200E.WARRENDALE-BAYNE RD · Structure no. 000000000001992

Built
1919
106 years old
Condition
Fair
inspected February 2024
Type
Arch - Deck
Concrete
Length
25 ft
1 main span
Daily traffic
119
2024 count
Owner
State
State Highway Agency

About this bridge

Markman Park Road over Big Sewickley Creek is a concrete arch - deck carrying Markman Park Road over Big Sewickley Creek in Allegheny County, Pennsylvania. It was built in 1919, so it is 106 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.

It carries about 119 vehicles a day, roughly 24% of them trucks, projected to reach 886 by 2032. The structure is 25 ft (7.6 m) long and 22 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesMarkman Park Road
CrossesBig Sewickley Creek
Location200E.WARRENDALE-BAYNE RD
RouteState Highway 0
CountyAllegheny County
StatePennsylvania
Coordinates40.62359, -80.13961
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
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 protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span25 ft (7.6 m)
Deck width22 ft (6.8 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic119 (2024)
Projected traffic886 by 2032
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$126,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Markman Park Road over Big Sewickley Creek built?

It was built in 1919, making it 106 years old in 2025.

What condition is Markman Park Road over Big Sewickley 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 February 2024.

How much traffic does Markman Park Road over Big Sewickley Creek carry?

About 119 vehicles per day (2024 count), of which roughly 24% are trucks.

How long is Markman Park Road over Big Sewickley Creek?

The structure is 25 ft (7.6 m) long with a longest span of 25 ft (7.6 m) and a deck 22 ft wide.

Who owns Markman Park Road over Big Sewickley Creek?

It is owned by the State Highway Agency.