US Bridges

Pr 179 over Guamani River

Fair

Guayama Municipio, Puerto Rico · 6 KM North of Guayama · Structure no. 005251

Built
1925
100 years old, rebuilt 1998
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
50 ft
1 main span
Daily traffic
2,800
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 179 over Guamani River is a steel stringer/multi-beam or girder carrying Pr 179 over Guamani River in Guayama Municipio, Puerto Rico. It was built in 1925 and reconstructed in 1998, so it is 100 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 2,800 vehicles a day, roughly 4% of them trucks, projected to reach 3,600 by 2025. The structure is 50 ft (15.1 m) long and 36 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesPr 179
CrossesGuamani River
Location6 KM North of Guayama
RouteState Highway 179
CountyGuayama Municipio
StatePuerto Rico
Coordinates18.03217, -66.1081
Functional classRural Minor 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 alignment8: Equal to present desirable criteria
Operating rating52.1 US tons
Inventory rating40.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length50 ft (15.1 m)
Longest span45 ft (13.8 m)
Deck width36 ft (11 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,800 (2017)
Projected traffic3,600 by 2025
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed11.2 mi (18 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$50,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 179 over Guamani River built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1998.

What condition is Pr 179 over Guamani 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 July 2023.

How much traffic does Pr 179 over Guamani River carry?

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

How long is Pr 179 over Guamani River?

The structure is 50 ft (15.1 m) long with a longest span of 45 ft (13.8 m) and a deck 36 ft wide.

Who owns Pr 179 over Guamani River?

It is owned by the State Highway Agency.