US Bridges

Bonnybrook RD T481 over Letort Spring Run

Fair

Cumberland County, Pennsylvania · 0.40 SE of SR34 · Structure no. 000000000014094

Built
1940
85 years old
Condition
Fair
inspected July 2023
Type
Slab
Concrete
Length
25 ft
1 main span
Daily traffic
225
2018 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Bonnybrook RD T481 over Letort Spring Run is a concrete slab carrying Bonnybrook RD T481 over Letort Spring Run in Cumberland County, Pennsylvania. It was built in 1940, so it is 85 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 225 vehicles a day, projected to reach 275 by 2038. The structure is 25 ft (7.6 m) long and 17 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesBonnybrook RD T481
CrossesLetort Spring Run
Location0.40 SE of SR34
RouteCity Street 0
CountyCumberland County
StatePennsylvania
Coordinates40.17595, -77.18594
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating87 US tons
Inventory rating52 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span25 ft (7.6 m)
Deck width17 ft (5.3 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic225 (2018)
Projected traffic275 by 2038
Trucks0%
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

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Bonnybrook RD T481 over Letort Spring Run built?

It was built in 1940, making it 85 years old in 2025.

What condition is Bonnybrook RD T481 over Letort Spring Run 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 July 2023.

How much traffic does Bonnybrook RD T481 over Letort Spring Run carry?

About 225 vehicles per day (2018 count).

How long is Bonnybrook RD T481 over Letort Spring Run?

The structure is 25 ft (7.6 m) long with a longest span of 25 ft (7.6 m) and a deck 17 ft wide.

Who owns Bonnybrook RD T481 over Letort Spring Run?

It is owned by the Town or Township Highway Agency.