US Bridges

Pa 233; Rocky Mtn. over Rocky Mt CR

Fair

Franklin County, Pennsylvania · Caledonia · Structure no. 000000000017406

Built
1948
77 years old, rebuilt 2020
Condition
Fair
inspected June 2024
Type
Slab
Concrete
Length
39 ft
2 main spans
Daily traffic
1,272
2024 count
Owner
State
State Highway Agency

About this bridge

Pa 233; Rocky Mtn. over Rocky Mt CR is a concrete slab carrying Pa 233; Rocky Mtn. over Rocky Mt CR in Franklin County, Pennsylvania. It was built in 1948 and reconstructed in 2020, so it is 77 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 1,272 vehicles a day, roughly 7% of them trucks, projected to reach 1,762 by 2039. The structure is 39 ft (11.9 m) long and 35 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesPa 233; Rocky Mtn.
CrossesRocky Mt CR
LocationCaledonia
RouteState Highway 233
CountyFranklin County
StatePennsylvania
Coordinates39.90531, -77.47811
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37 US tons
Inventory rating22 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length39 ft (11.9 m)
Longest span20 ft (6.1 m)
Deck width35 ft (10.6 m)
Roadway width33 ft (10 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,272 (2024)
Projected traffic1,762 by 2039
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$764,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pa 233; Rocky Mtn. over Rocky Mt CR built?

It was built in 1948, making it 77 years old in 2025. It was reconstructed in 2020.

What condition is Pa 233; Rocky Mtn. over Rocky Mt CR 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 2024.

How much traffic does Pa 233; Rocky Mtn. over Rocky Mt CR carry?

About 1,272 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Pa 233; Rocky Mtn. over Rocky Mt CR?

The structure is 39 ft (11.9 m) long with a longest span of 20 ft (6.1 m) and a deck 35 ft wide.

Who owns Pa 233; Rocky Mtn. over Rocky Mt CR?

It is owned by the State Highway Agency.