US Bridges

Pr 553 KM 1.3 over Descalabrado River

Fair

Coamo Municipio, Puerto Rico · 1.3 KM Int PR150 & Pr · Structure no. 011971

Built
1970
55 years old
Condition
Fair
inspected December 2023
Type
Tee Beam
Concrete Continuous
Length
98 ft
3 main spans
Daily traffic
200
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 553 KM 1.3 over Descalabrado River is a concrete continuous tee beam carrying Pr 553 KM 1.3 over Descalabrado River in Coamo Municipio, Puerto Rico. It was built in 1970, so it is 55 years old, older than the Puerto Rico average of 51.2 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. Its operating status is: open, posting recommended but not legally implemented.

It carries about 200 vehicles a day, roughly 2% of them trucks, projected to reach 300 by 2025. The structure is 98 ft (29.9 m) long and 31 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesPr 553 KM 1.3
CrossesDescalabrado River
Location1.3 KM Int PR150 & Pr
RouteState Highway 553
Coordinates18.09972, -66.40778
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
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, posting recommended but not legally implemented
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating19.6 US tons
Inventory rating11.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length98 ft (29.9 m)
Longest span37 ft (11.3 m)
Deck width31 ft (9.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2017)
Projected traffic300 by 2025
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed123.7 mi (199 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$531,000 (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 553 KM 1.3 over Descalabrado River built?

It was built in 1970, making it 55 years old in 2025.

What condition is Pr 553 KM 1.3 over Descalabrado River 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 December 2023.

How much traffic does Pr 553 KM 1.3 over Descalabrado River carry?

About 200 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Pr 553 KM 1.3 over Descalabrado River?

The structure is 98 ft (29.9 m) long with a longest span of 37 ft (11.3 m) and a deck 31 ft wide.

Who owns Pr 553 KM 1.3 over Descalabrado River?

It is owned by the State Highway Agency.