US Bridges

Off Pr 164 6.3 KM over Guadiana River

Fair

Naranjito Municipio, Puerto Rico · Off Pr 164 at KM 6.3 · Structure no. 009401

Built
1965
60 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
158 ft
4 main spans
Daily traffic
3,300
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

Off Pr 164 6.3 KM over Guadiana River is a prestressed concrete stringer/multi-beam or girder carrying Off Pr 164 6.3 KM over Guadiana River in Naranjito Municipio, Puerto Rico. It was built in 1965, so it is 60 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.

It carries about 3,300 vehicles a day, roughly 4% of them trucks, projected to reach 4,300 by 2025. The structure is 158 ft (48.3 m) long and 43 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesOff Pr 164 6.3 KM
CrossesGuadiana River
LocationOff Pr 164 at KM 6.3
RouteCounty Highway 0
CountyNaranjito Municipio
StatePuerto Rico
Coordinates18.30159, -66.25058
Functional classUrban 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
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating64.3 US tons
Inventory rating42.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length158 ft (48.3 m)
Longest span38 ft (11.7 m)
Deck width43 ft (13 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,300 (2017)
Projected traffic4,300 by 2025
Trucks4%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.5 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Off Pr 164 6.3 KM over Guadiana River built?

It was built in 1965, making it 60 years old in 2025.

What condition is Off Pr 164 6.3 KM over Guadiana 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 August 2024.

How much traffic does Off Pr 164 6.3 KM over Guadiana River carry?

About 3,300 vehicles per day (2017 count), of which roughly 4% are trucks.

How long is Off Pr 164 6.3 KM over Guadiana River?

The structure is 158 ft (48.3 m) long with a longest span of 38 ft (11.7 m) and a deck 43 ft wide.

Who owns Off Pr 164 6.3 KM over Guadiana River?

It is owned by the City or Municipal Highway Agency.