US Bridges

Pr 186 18.9 KM over Espiritu Santo River

Fair

Rio Grande Municipio, Puerto Rico · 7 KM South of Rio Grande · Structure no. 004481

Built
1941
84 years old, rebuilt 1960
Condition
Fair
inspected August 2024
Type
Slab
Concrete
Length
65 ft
3 main spans
Daily traffic
100
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 186 18.9 KM over Espiritu Santo River is a concrete slab carrying Pr 186 18.9 KM over Espiritu Santo River in Rio Grande Municipio, Puerto Rico. It was built in 1941 and reconstructed in 1960, so it is 84 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 fair condition with a lowest component rating of 5 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 100 vehicles a day, roughly 5% of them trucks, projected to reach 100 by 2025. The structure is 65 ft (19.9 m) long and 25 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesPr 186 18.9 KM
CrossesEspiritu Santo River
Location7 KM South of Rio Grande
RouteState Highway 186
CountyRio Grande Municipio
StatePuerto Rico
Coordinates18.32361, -65.81991
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating58.4 US tons
Inventory rating33.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length65 ft (19.9 m)
Longest span22 ft (6.8 m)
Deck width25 ft (7.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2017)
Projected traffic100 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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$437,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 186 18.9 KM over Espiritu Santo River built?

It was built in 1941, making it 84 years old in 2025. It was reconstructed in 1960.

What condition is Pr 186 18.9 KM over Espiritu Santo River 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 August 2024.

How much traffic does Pr 186 18.9 KM over Espiritu Santo River carry?

About 100 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Pr 186 18.9 KM over Espiritu Santo River?

The structure is 65 ft (19.9 m) long with a longest span of 22 ft (6.8 m) and a deck 25 ft wide.

Who owns Pr 186 18.9 KM over Espiritu Santo River?

It is owned by the State Highway Agency.