US Bridges

Pr 53 over Blanco River & Pr 31

Fair

Naguabo Municipio, Puerto Rico · 3.5 Kms West of Naguabo · Structure no. 025452

Built
1998
27 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,993 ft
17 main spans
Daily traffic
10,050
2017 count
Owner
Toll Authority
State Toll Authority

About this bridge

Pr 53 over Blanco River & Pr 31 is a prestressed concrete stringer/multi-beam or girder carrying Pr 53 over Blanco River & Pr 31 in Naguabo Municipio, Puerto Rico. It was built in 1998, so it is 27 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 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 10,050 vehicles a day, roughly 5% of them trucks, projected to reach 13,250 by 2025. The structure is 1,993 ft (607.4 m) long and 46 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesPr 53
CrossesBlanco River & Pr 31
Location3.5 Kms West of Naguabo
RouteInterstate 53
CountyNaguabo Municipio
StatePuerto Rico
Coordinates18.21384, -65.77514
Functional classRural Principal Arterial - Other

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating68 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans17
Design loadHS 20
Structure length1,993 ft (607.4 m)
Longest span128 ft (39 m)
Deck width46 ft (13.9 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,050 (2017)
Projected traffic13,250 by 2025
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed0.6 mi (1 km)
TollToll bridge
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
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 53 over Blanco River & Pr 31 built?

It was built in 1998, making it 27 years old in 2025.

What condition is Pr 53 over Blanco River & Pr 31 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 October 2023.

How much traffic does Pr 53 over Blanco River & Pr 31 carry?

About 10,050 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Pr 53 over Blanco River & Pr 31?

The structure is 1,993 ft (607.4 m) long with a longest span of 128 ft (39 m) and a deck 46 ft wide.

Who owns Pr 53 over Blanco River & Pr 31?

It is owned by the State Toll Authority.