US Bridges

T-773 Udell Road over Sewickley Creek

Fair

Westmoreland County, Pennsylvania · 300 South of SR 2012 · Structure no. 000000000036938

Built
1936
89 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
400
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T-773 Udell Road over Sewickley Creek is a steel stringer/multi-beam or girder carrying T-773 Udell Road over Sewickley Creek in Westmoreland County, Pennsylvania. It was built in 1936, so it is 89 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 400 vehicles a day, roughly 1% of them trucks, projected to reach 425 by 2042. The structure is 40 ft (12.2 m) long and 15 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesT-773 Udell Road
CrossesSewickley Creek
Location300 South of SR 2012
RouteCity Street 0T773
CountyWestmoreland County
StatePennsylvania
Coordinates40.21947, -79.53256
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating78 US tons
Inventory rating46 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length40 ft (12.2 m)
Longest span36 ft (11 m)
Deck width15 ft (4.5 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2022)
Projected traffic425 by 2042
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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$53,000
NavigationNo navigation control on waterway

Frequently asked questions

When was T-773 Udell Road over Sewickley Creek built?

It was built in 1936, making it 89 years old in 2025.

What condition is T-773 Udell Road over 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 September 2024.

How much traffic does T-773 Udell Road over Sewickley Creek carry?

About 400 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is T-773 Udell Road over Sewickley Creek?

The structure is 40 ft (12.2 m) long with a longest span of 36 ft (11 m) and a deck 15 ft wide.

Who owns T-773 Udell Road over Sewickley Creek?

It is owned by the Town or Township Highway Agency.