US Bridges

So.Malta Rd. T-482 over Mahantango Creek

Poor

Dauphin County, Pennsylvania · .1S Malta/Mahantango Crk. · Structure no. 000000000014707

Built
1973
52 years old
Condition
Poor
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
137 ft
2 main spans
Daily traffic
100
2023 count
Owner
County
County Highway Agency

About this bridge

So.Malta Rd. T-482 over Mahantango Creek is a prestressed concrete box beam or girders - multiple carrying So.Malta Rd. T-482 over Mahantango Creek in Dauphin County, Pennsylvania. It was built in 1973, so it is 52 years old, younger 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.

It carries about 100 vehicles a day, projected to reach 140 by 2043. The structure is 137 ft (41.8 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSo.Malta Rd. T-482
CrossesMahantango Creek
Location.1S Malta/Mahantango Crk.
RouteCity Street 0
CountyDauphin County
StatePennsylvania
Coordinates40.6111, -76.9115
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.
Superstructure7 GoodSome minor problems.
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 inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80 US tons
Inventory rating29 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length137 ft (41.8 m)
Longest span68 ft (20.7 m)
Deck width26 ft (7.8 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2023)
Projected traffic140 by 2043
Trucks0%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was So.Malta Rd. T-482 over Mahantango Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is So.Malta Rd. T-482 over Mahantango 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 So.Malta Rd. T-482 over Mahantango Creek carry?

About 100 vehicles per day (2023 count).

How long is So.Malta Rd. T-482 over Mahantango Creek?

The structure is 137 ft (41.8 m) long with a longest span of 68 ft (20.7 m) and a deck 26 ft wide.

Who owns So.Malta Rd. T-482 over Mahantango Creek?

It is owned by the County Highway Agency.