US Bridges

Pr 31 23.0 KM over Gurabo River

Poor

Juncos Municipio, Puerto Rico · 3 KM North East of Juncos · Structure no. 001911

Built
1928
97 years old
Condition
Poor
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
208 ft
3 main spans
Daily traffic
12,200
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 31 23.0 KM over Gurabo River is a steel stringer/multi-beam or girder carrying Pr 31 23.0 KM over Gurabo River in Juncos Municipio, Puerto Rico. It was built in 1928, so it is 97 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 12,200 vehicles a day, roughly 5% of them trucks, projected to reach 16,600 by 2025. The structure is 208 ft (63.5 m) long and 24 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesPr 31 23.0 KM
CrossesGurabo River
Location3 KM North East of Juncos
RouteState Highway 31
Coordinates18.23865, -65.89727
Functional classUrban Other Principal Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusOpen, no 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating73 US tons
Inventory rating39.2 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length208 ft (63.5 m)
Longest span70 ft (21.2 m)
Deck width24 ft (7.3 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,200 (2017)
Projected traffic16,600 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$994,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 31 23.0 KM over Gurabo River built?

It was built in 1928, making it 97 years old in 2025.

What condition is Pr 31 23.0 KM over Gurabo River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.

How much traffic does Pr 31 23.0 KM over Gurabo River carry?

About 12,200 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Pr 31 23.0 KM over Gurabo River?

The structure is 208 ft (63.5 m) long with a longest span of 70 ft (21.2 m) and a deck 24 ft wide.

Who owns Pr 31 23.0 KM over Gurabo River?

It is owned by the State Highway Agency.