US Bridges

Smith Bridge TR318 over Tenmile Creek

PoorPosted for load

Washington County, Pennsylvania · 300 West of SR 2020 · Structure no. 000000000035240

Built
1954
71 years old
Condition
Poor
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
85 ft
2 main spans
Daily traffic
75
2024 count
Owner
County
County Highway Agency

About this bridge

Smith Bridge TR318 over Tenmile Creek is a steel stringer/multi-beam or girder carrying Smith Bridge TR318 over Tenmile Creek in Washington County, Pennsylvania. It was built in 1954, so it is 71 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. Its operating status is: posted for load restriction.

It carries about 75 vehicles a day, projected to reach 105 by 2044. The structure is 85 ft (25.9 m) long and 19 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSmith Bridge TR318
CrossesTenmile Creek
Location300 West of SR 2020
RouteCity Street 0T318
Coordinates40.01271, -80.13145
Functional classRural Minor Arterial

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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, 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 inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be 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 alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating37 US tons
Inventory rating22 US tons

Structure

MaterialSteel
DeckOpen grating
Main spans2
Design loadHS 20
Structure length85 ft (25.9 m)
Longest span41 ft (12.5 m)
Deck width19 ft (5.8 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2024)
Projected traffic105 by 2044
Trucks—
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

OwnerCounty Highway Agency
Maintained byCounty 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$62,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Smith Bridge TR318 over Tenmile Creek built?

It was built in 1954, making it 71 years old in 2025.

What condition is Smith Bridge TR318 over Tenmile 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 August 2023.

How much traffic does Smith Bridge TR318 over Tenmile Creek carry?

About 75 vehicles per day (2024 count).

How long is Smith Bridge TR318 over Tenmile Creek?

The structure is 85 ft (25.9 m) long with a longest span of 41 ft (12.5 m) and a deck 19 ft wide.

Who owns Smith Bridge TR318 over Tenmile Creek?

It is owned by the County Highway Agency.