US Bridges

Pr 646 4.7 KM over Indio River

Fair

Vega Baja Municipio, Puerto Rico · 4 Miles South Vega Baja · Structure no. 010591

Built
1968
57 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
167 ft
3 main spans
Daily traffic
800
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 646 4.7 KM over Indio River is a steel stringer/multi-beam or girder carrying Pr 646 4.7 KM over Indio River in Vega Baja Municipio, Puerto Rico. It was built in 1968, so it is 57 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 800 vehicles a day, roughly 3% of them trucks, projected to reach 1,200 by 2025. The structure is 167 ft (50.9 m) long and 25 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesPr 646 4.7 KM
CrossesIndio River
Location4 Miles South Vega Baja
RouteState Highway 22
CountyVega Baja Municipio
StatePuerto Rico
Coordinates18.40917, -66.38861
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating29.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length167 ft (50.9 m)
Longest span56 ft (17 m)
Deck width25 ft (7.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2017)
Projected traffic1,200 by 2025
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$118,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 646 4.7 KM over Indio River built?

It was built in 1968, making it 57 years old in 2025.

What condition is Pr 646 4.7 KM over Indio 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 February 2024.

How much traffic does Pr 646 4.7 KM over Indio River carry?

About 800 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is Pr 646 4.7 KM over Indio River?

The structure is 167 ft (50.9 m) long with a longest span of 56 ft (17 m) and a deck 25 ft wide.

Who owns Pr 646 4.7 KM over Indio River?

It is owned by the State Highway Agency.