US Bridges

Pr 164 6.4 KM over Guadiana River

Fair

Naranjito Municipio, Puerto Rico · 2 KM West of Naranjito · Structure no. 003621

Built
1924
101 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
33 ft
1 main span
Daily traffic
3,300
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 164 6.4 KM over Guadiana River is a steel stringer/multi-beam or girder carrying Pr 164 6.4 KM over Guadiana River in Naranjito Municipio, Puerto Rico. It was built in 1924, so it is 101 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 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 3,300 vehicles a day, roughly 4% of them trucks, projected to reach 4,300 by 2025. The structure is 33 ft (10 m) long and 24 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesPr 164 6.4 KM
CrossesGuadiana River
Location2 KM West of Naranjito
RouteState Highway 164
CountyNaranjito Municipio
StatePuerto Rico
Coordinates18.29885, -66.25276
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating72.1 US tons
Inventory rating36.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length33 ft (10 m)
Longest span33 ft (10 m)
Deck width24 ft (7.3 m)
Roadway width19 ft (5.7 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
CrossesWaterway
Detour if closed2.5 mi (4 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$211,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 164 6.4 KM over Guadiana River built?

It was built in 1924, making it 101 years old in 2025.

What condition is Pr 164 6.4 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 January 2024.

How much traffic does Pr 164 6.4 KM over Guadiana River carry?

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

How long is Pr 164 6.4 KM over Guadiana River?

The structure is 33 ft (10 m) long with a longest span of 33 ft (10 m) and a deck 24 ft wide.

Who owns Pr 164 6.4 KM over Guadiana River?

It is owned by the State Highway Agency.