US Bridges

Ladnor Lane T-575 over Mountain Creek

PoorPosted for load

Cumberland County, Pennsylvania · 0.9 MI NE of SR 34 · Structure no. 000000000014101

Built
1920
105 years old
Condition
Poor
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
50 ft
2 main spans
Daily traffic
100
2018 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Ladnor Lane T-575 over Mountain Creek is a steel stringer/multi-beam or girder carrying Ladnor Lane T-575 over Mountain Creek in Cumberland County, Pennsylvania. It was built in 1920, so it is 105 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 100 vehicles a day, projected to reach 140 by 2038. The structure is 50 ft (15.2 m) long and 16 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesLadnor Lane T-575
CrossesMountain Creek
Location0.9 MI NE of SR 34
RouteCity Street 0
Coordinates40.13742, -77.18016
Functional classRural Local

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
Deck4 PoorAdvanced section loss, deterioration, 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 inspectionJuly 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating8 US tons
Inventory rating6 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans2
Design loadUnknown
Structure length50 ft (15.2 m)
Longest span22 ft (6.7 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2018)
Projected traffic140 by 2038
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$144,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Ladnor Lane T-575 over Mountain Creek built?

It was built in 1920, making it 105 years old in 2025.

What condition is Ladnor Lane T-575 over Mountain 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 July 2023.

How much traffic does Ladnor Lane T-575 over Mountain Creek carry?

About 100 vehicles per day (2018 count).

How long is Ladnor Lane T-575 over Mountain Creek?

The structure is 50 ft (15.2 m) long with a longest span of 22 ft (6.7 m) and a deck 16 ft wide.

Who owns Ladnor Lane T-575 over Mountain Creek?

It is owned by the Town or Township Highway Agency.