US Bridges

Pr 909 over Mariana Creek

Fair

Humacao Municipio, Puerto Rico · 1.6 KM S W of Humacao · Structure no. 017551

Built
1981
44 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
92 ft
1 main span
Daily traffic
5,800
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 909 over Mariana Creek is a prestressed concrete stringer/multi-beam or girder carrying Pr 909 over Mariana Creek in Humacao Municipio, Puerto Rico. It was built in 1981, so it is 44 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 5,800 vehicles a day, roughly 4% of them trucks, projected to reach 8,400 by 2025. The structure is 92 ft (28.1 m) long and 50 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesPr 909
CrossesMariana Creek
Location1.6 KM S W of Humacao
RouteState Highway 909
CountyHumacao Municipio
StatePuerto Rico
Coordinates18.13806, -65.83167
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length92 ft (28.1 m)
Longest span87 ft (26.6 m)
Deck width50 ft (15.1 m)
Roadway width46 ft (14.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,800 (2017)
Projected traffic8,400 by 2025
Trucks4%
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$993,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 909 over Mariana Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is Pr 909 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 July 2023.

How much traffic does Pr 909 over Mariana Creek carry?

About 5,800 vehicles per day (2017 count), of which roughly 4% are trucks.

How long is Pr 909 over Mariana Creek?

The structure is 92 ft (28.1 m) long with a longest span of 87 ft (26.6 m) and a deck 50 ft wide.

Who owns Pr 909 over Mariana Creek?

It is owned by the State Highway Agency.