US Bridges

Iams Hill RD TR733 over Ten Mile Creek

PoorPosted for load

Washington County, Pennsylvania · 200 from SR 2020 · Structure no. 000000000035244

Built
1949
76 years old
Condition
Poor
inspected August 2023
Type
Truss - Thru
Steel
Length
94 ft
1 main span
Daily traffic
200
2015 count
Owner
County
County Highway Agency

About this bridge

Iams Hill RD TR733 over Ten Mile Creek is a steel truss - thru carrying Iams Hill RD TR733 over Ten Mile Creek in Washington County, Pennsylvania. It was built in 1949, so it is 76 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 3 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 200 vehicles a day, roughly 1% of them trucks, projected to reach 200 by 2035. The structure is 94 ft (28.7 m) long and 18 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesIams Hill RD TR733
CrossesTen Mile Creek
Location200 from SR 2020
RouteCounty Highway 0T733
Coordinates40.01992, -80.15091
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.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure4 PoorAdvanced section loss, deterioration, 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 evaluation3: Basically intolerable, requiring high priority of corrective action
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 rating12 US tons
Inventory rating9 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length94 ft (28.7 m)
Longest span90 ft (27.4 m)
Deck width18 ft (5.5 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deck13 ft (4 m)

Traffic and service

Average daily traffic200 (2015)
Projected traffic200 by 2035
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 statusEligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$109,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Iams Hill RD TR733 over Ten Mile Creek built?

It was built in 1949, making it 76 years old in 2025.

What condition is Iams Hill RD TR733 over Ten Mile 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 Iams Hill RD TR733 over Ten Mile Creek carry?

About 200 vehicles per day (2015 count), of which roughly 1% are trucks.

How long is Iams Hill RD TR733 over Ten Mile Creek?

The structure is 94 ft (28.7 m) long with a longest span of 90 ft (27.4 m) and a deck 18 ft wide.

Who owns Iams Hill RD TR733 over Ten Mile Creek?

It is owned by the County Highway Agency.