US Bridges

PR-4494 over Waterway

Fair

Isabela Municipio, Puerto Rico · 1.51 Km. S. Isabela Town · Structure no. 028461

Built
2009
16 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
233 ft
2 main spans
Daily traffic
600
2017 count
Owner
State
State Highway Agency

About this bridge

PR-4494 over Waterway is a prestressed concrete stringer/multi-beam or girder carrying PR-4494 over Waterway in Isabela Municipio, Puerto Rico. It was built in 2009, so it is 16 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 600 vehicles a day, roughly 5% of them trucks, projected to reach 800 by 2025. The structure is 233 ft (71.1 m) long and 87 ft wide. If it were closed, the detour would be 4.3 mi (7 km).

Location

Open in Google Maps
CarriesPR-4494
CrossesWaterway
Location1.51 Km. S. Isabela Town
RouteState Highway 4494
CountyIsabela Municipio
StatePuerto Rico
Coordinates18.48697, -67.0255
Functional classRural Local

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating101 US tons
Inventory rating61.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length233 ft (71.1 m)
Longest span117 ft (35.6 m)
Deck width87 ft (26.6 m)
Roadway width71 ft (21.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2017)
Projected traffic800 by 2025
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed4.3 mi (7 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was PR-4494 over Waterway built?

It was built in 2009, making it 16 years old in 2025.

What condition is PR-4494 over Waterway 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-4494 over Waterway carry?

About 600 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is PR-4494 over Waterway?

The structure is 233 ft (71.1 m) long with a longest span of 117 ft (35.6 m) and a deck 87 ft wide.

Who owns PR-4494 over Waterway?

It is owned by the State Highway Agency.