US Bridges

Pr 108 6.4 KM over Ca%as River

Fair

Mayaguez Municipio, Puerto Rico · 5 KM N E of Mayaguez · Structure no. 014541

Built
1975
50 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
150 ft
2 main spans
Daily traffic
2,800
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 108 6.4 KM over Ca%as River is a prestressed concrete stringer/multi-beam or girder carrying Pr 108 6.4 KM over Ca%as River in Mayaguez Municipio, Puerto Rico. It was built in 1975, so it is 50 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 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 2,800 vehicles a day, roughly 4% of them trucks, projected to reach 4,000 by 2025. The structure is 150 ft (45.6 m) long and 51 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesPr 108 6.4 KM
CrossesCa%as River
Location5 KM N E of Mayaguez
RouteState Highway 108
CountyMayaguez Municipio
StatePuerto Rico
Coordinates18.24155, -66.12071
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 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 alignment6: Equal to present minimum criteria
Operating rating78.3 US tons
Inventory rating48.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length150 ft (45.6 m)
Longest span68 ft (20.8 m)
Deck width51 ft (15.4 m)
Roadway width46 ft (14.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,800 (2017)
Projected traffic4,000 by 2025
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$70,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 108 6.4 KM over Ca%as River built?

It was built in 1975, making it 50 years old in 2025.

What condition is Pr 108 6.4 KM over Ca%as 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 108 6.4 KM over Ca%as River carry?

About 2,800 vehicles per day (2017 count), of which roughly 4% are trucks.

How long is Pr 108 6.4 KM over Ca%as River?

The structure is 150 ft (45.6 m) long with a longest span of 68 ft (20.8 m) and a deck 51 ft wide.

Who owns Pr 108 6.4 KM over Ca%as River?

It is owned by the State Highway Agency.