US Bridges

Pr 54 over Unknown Creek

Good

Guayama Municipio, Puerto Rico · PR-54 Int. PR-744 KM 0.5 · Structure no. 027141

Built
1993
32 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
22,300
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 54 over Unknown Creek is a concrete culvert carrying Pr 54 over Unknown Creek in Guayama Municipio, Puerto Rico. It was built in 1993, so it is 32 years old, younger than the Puerto Rico average of 51.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 22,300 vehicles a day, roughly 5% of them trucks, projected to reach 30,800 by 2025. The structure is 25 ft (7.6 m) long and 186 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesPr 54
CrossesUnknown Creek
LocationPR-54 Int. PR-744 KM 0.5
RouteInterstate 54
CountyGuayama Municipio
StatePuerto Rico
Coordinates17.9745, -66.10998
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
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 rating43.5 US tons
Inventory rating33.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span11 ft (3.3 m)
Deck width186 ft (56.7 m)
Roadway width86 ft (26.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,300 (2017)
Projected traffic30,800 by 2025
Trucks5%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 54 over Unknown Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is Pr 54 over Unknown Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does Pr 54 over Unknown Creek carry?

About 22,300 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Pr 54 over Unknown Creek?

The structure is 25 ft (7.6 m) long with a longest span of 11 ft (3.3 m) and a deck 186 ft wide.

Who owns Pr 54 over Unknown Creek?

It is owned by the State Highway Agency.