US Bridges

Pr 186 over Grande Creek

PoorClosed to traffic

Rio Grande Municipio, Puerto Rico · 9 KM South of Rio Grande · Structure no. 004471

Built
1940
85 years old, rebuilt 1960
Condition
Poor
inspected March 2025
Type
Slab
Concrete
Length
41 ft
2 main spans
Daily traffic
200
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 186 over Grande Creek is a concrete slab carrying Pr 186 over Grande Creek in Rio Grande Municipio, Puerto Rico. It was built in 1940 and reconstructed in 1960, so it is 85 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. Its operating status is: closed to all traffic.

It carries about 200 vehicles a day, roughly 2% of them trucks, projected to reach 300 by 2025. The structure is 41 ft (12.5 m) long and 41 ft wide. If it were closed, the detour would be 10.6 mi (17 km).

Location

Open in Google Maps
CarriesPr 186
CrossesGrande Creek
Location9 KM South of Rio Grande
RouteState Highway 186
CountyRio Grande Municipio
StatePuerto Rico
Coordinates18.30444, -65.83292
Functional classRural Major Collector

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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMarch 2025
Inspection intervalevery 12 months
Operating statusClosed to all traffic
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating31.7 US tons
Inventory rating19 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length41 ft (12.5 m)
Longest span21 ft (6.3 m)
Deck width41 ft (12.5 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2017)
Projected traffic300 by 2025
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed10.6 mi (17 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$144,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 186 over Grande Creek built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1960.

What condition is Pr 186 over Grande Creek 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 March 2025.

How much traffic does Pr 186 over Grande Creek carry?

About 200 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Pr 186 over Grande Creek?

The structure is 41 ft (12.5 m) long with a longest span of 21 ft (6.3 m) and a deck 41 ft wide.

Who owns Pr 186 over Grande Creek?

It is owned by the State Highway Agency.