US Bridges

Pr 1 108.4 KM over Descalabrado River

Poor

Juana Diaz Municipio, Puerto Rico · 5.5 KM N W Santa Isabel · Structure no. 000231

Built
1921
104 years old, rebuilt 1967
Condition
Poor
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
107 ft
3 main spans
Daily traffic
11,200
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 1 108.4 KM over Descalabrado River is a steel stringer/multi-beam or girder carrying Pr 1 108.4 KM over Descalabrado River in Juana Diaz Municipio, Puerto Rico. It was built in 1921 and reconstructed in 1967, so it is 104 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 11,200 vehicles a day, roughly 4% of them trucks, projected to reach 14,300 by 2025. The structure is 107 ft (32.6 m) long and 33 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesPr 1 108.4 KM
CrossesDescalabrado River
Location5.5 KM N W Santa Isabel
RouteState Highway 1
CountyJuana Diaz Municipio
StatePuerto Rico
Coordinates17.99065, -66.44301
Functional classRural Minor 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
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.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating85.6 US tons
Inventory rating46.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length107 ft (32.6 m)
Longest span42 ft (12.8 m)
Deck width33 ft (10.1 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,200 (2017)
Projected traffic14,300 by 2025
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$702,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 1 108.4 KM over Descalabrado River built?

It was built in 1921, making it 104 years old in 2025. It was reconstructed in 1967.

What condition is Pr 1 108.4 KM over Descalabrado 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 1 108.4 KM over Descalabrado River carry?

About 11,200 vehicles per day (2017 count), of which roughly 4% are trucks.

How long is Pr 1 108.4 KM over Descalabrado River?

The structure is 107 ft (32.6 m) long with a longest span of 42 ft (12.8 m) and a deck 33 ft wide.

Who owns Pr 1 108.4 KM over Descalabrado River?

It is owned by the State Highway Agency.