US Bridges

Pr 908 over Mariana Creek

FairPosted for load

Humacao Municipio, Puerto Rico · 0.10 KM West of Int Pr 3 · Structure no. 018111

Built
1984
41 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
9,300
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 908 over Mariana Creek is a prestressed concrete stringer/multi-beam or girder carrying Pr 908 over Mariana Creek in Humacao Municipio, Puerto Rico. It was built in 1984, so it is 41 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 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 9,300 vehicles a day, roughly 4% of them trucks, projected to reach 11,800 by 2025. The structure is 70 ft (21.2 m) long and 61 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesPr 908
CrossesMariana Creek
Location0.10 KM West of Int Pr 3
RouteState Highway 908
CountyHumacao Municipio
StatePuerto Rico
Coordinates18.14429, -65.82777
Functional classUrban Other Principal 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.4 US tons
Inventory rating20.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length70 ft (21.2 m)
Longest span70 ft (21.2 m)
Deck width61 ft (18.6 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,300 (2017)
Projected traffic11,800 by 2025
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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$83,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 908 over Mariana Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is Pr 908 over Mariana Creek 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 2023.

How much traffic does Pr 908 over Mariana Creek carry?

About 9,300 vehicles per day (2017 count), of which roughly 4% are trucks.

How long is Pr 908 over Mariana Creek?

The structure is 70 ft (21.2 m) long with a longest span of 70 ft (21.2 m) and a deck 61 ft wide.

Who owns Pr 908 over Mariana Creek?

It is owned by the State Highway Agency.