US Bridges

Risser Mill; T-350 over Pa 283; SR 0300

Fair

Lancaster County, Pennsylvania · 1.5 Mi.N.E. Florin · Structure no. 000000000021175

Built
1968
57 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
252 ft
4 main spans
Daily traffic
464
2024 count
Owner
State
State Highway Agency

About this bridge

Risser Mill; T-350 over Pa 283; SR 0300 is a prestressed concrete box beam or girders - multiple carrying Risser Mill; T-350 over Pa 283; SR 0300 in Lancaster County, Pennsylvania. It was built in 1968, so it is 57 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 6 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 464 vehicles a day, roughly 4% of them trucks, projected to reach 409 by 2032. The structure is 252 ft (76.8 m) long and 34 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesRisser Mill; T-350
CrossesPa 283; SR 0300
Location1.5 Mi.N.E. Florin
RouteState Highway 0
CountyLancaster County
StatePennsylvania
Coordinates40.12823, -76.50902
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating25 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length252 ft (76.8 m)
Longest span85 ft (25.9 m)
Deck width34 ft (10.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic464 (2024)
Projected traffic409 by 2032
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Risser Mill; T-350 over Pa 283; SR 0300 built?

It was built in 1968, making it 57 years old in 2025.

What condition is Risser Mill; T-350 over Pa 283; SR 0300 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 June 2023.

How much traffic does Risser Mill; T-350 over Pa 283; SR 0300 carry?

About 464 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Risser Mill; T-350 over Pa 283; SR 0300?

The structure is 252 ft (76.8 m) long with a longest span of 85 ft (25.9 m) and a deck 34 ft wide.

Who owns Risser Mill; T-350 over Pa 283; SR 0300?

It is owned by the State Highway Agency.