US Bridges

PR-4494 over Waterway

Good

Isabela Municipio, Puerto Rico · 2.53 Km. S. of Isabela T. · Structure no. 028451

Built
2009
16 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
167 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 600 vehicles a day, roughly 5% of them trucks, projected to reach 800 by 2025. The structure is 167 ft (50.9 m) long and 87 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesPR-4494
CrossesWaterway
Location2.53 Km. S. of Isabela T.
RouteState Highway 4494
CountyIsabela Municipio
StatePuerto Rico
Coordinates18.47778, -67.02389
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
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 evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.4 US tons
Inventory rating43.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length167 ft (50.9 m)
Longest span84 ft (25.5 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 closed5 mi (8 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 good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. 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 167 ft (50.9 m) long with a longest span of 84 ft (25.5 m) and a deck 87 ft wide.

Who owns PR-4494 over Waterway?

It is owned by the State Highway Agency.