US Bridges

Pr 108 over Casei River

FairPosted for load

Las Marias Municipio, Puerto Rico · 9 KM N E of Mayaguez · Structure no. 002371

Built
1958
67 years old
Condition
Fair
inspected May 2023
Type
Tee Beam
Concrete Continuous
Length
85 ft
2 main spans
Daily traffic
2,600
2004 count
Owner
State
State Highway Agency

About this bridge

Pr 108 over Casei River is a concrete continuous tee beam carrying Pr 108 over Casei River in Las Marias Municipio, Puerto Rico. It was built in 1958, so it is 67 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. Its operating status is: posted for load restriction.

It carries about 2,600 vehicles a day, roughly 4% of them trucks, projected to reach 3,432 by 2025. The structure is 85 ft (26 m) long and 32 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

Open in Google Maps
CarriesPr 108
CrossesCasei River
Location9 KM N E of Mayaguez
RouteState Highway 108
CountyLas Marias Municipio
StatePuerto Rico
Coordinates18.25167, -67.08
Functional classRural Major 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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating29 US tons
Inventory rating22.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length85 ft (26 m)
Longest span43 ft (13 m)
Deck width32 ft (9.7 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,600 (2004)
Projected traffic3,432 by 2025
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed16.2 mi (26 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$912,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 108 over Casei River built?

It was built in 1958, making it 67 years old in 2025.

What condition is Pr 108 over Casei 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 May 2023.

How much traffic does Pr 108 over Casei River carry?

About 2,600 vehicles per day (2004 count), of which roughly 4% are trucks.

How long is Pr 108 over Casei River?

The structure is 85 ft (26 m) long with a longest span of 43 ft (13 m) and a deck 32 ft wide.

Who owns Pr 108 over Casei River?

It is owned by the State Highway Agency.