US Bridges

SR 45-PA 45 over Elk Creek

Fair

Centre County, Pennsylvania · Millheim Boro · Structure no. 000000000009258

Built
1961
64 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
81 ft
2 main spans
Daily traffic
3,223
2023 count
Owner
State
State Highway Agency

About this bridge

SR 45-PA 45 over Elk Creek is a prestressed concrete box beam or girders - multiple carrying SR 45-PA 45 over Elk Creek in Centre County, Pennsylvania. It was built in 1961, so it is 64 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 5 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 3,223 vehicles a day, roughly 11% of them trucks, projected to reach 4,662 by 2043. The structure is 81 ft (24.7 m) long and 43 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

Location

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CarriesSR 45-PA 45
CrossesElk Creek
LocationMillheim Boro
RouteState Highway 45
CountyCentre County
StatePennsylvania
Coordinates40.89128, -77.47424
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionJune 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating101 US tons
Inventory rating48 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length81 ft (24.7 m)
Longest span39 ft (11.9 m)
Deck width43 ft (13.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,223 (2023)
Projected traffic4,662 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed19.3 mi (31 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$410,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 45-PA 45 over Elk Creek built?

It was built in 1961, making it 64 years old in 2025.

What condition is SR 45-PA 45 over Elk Creek 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 SR 45-PA 45 over Elk Creek carry?

About 3,223 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is SR 45-PA 45 over Elk Creek?

The structure is 81 ft (24.7 m) long with a longest span of 39 ft (11.9 m) and a deck 43 ft wide.

Who owns SR 45-PA 45 over Elk Creek?

It is owned by the State Highway Agency.