US Bridges

Pr 191 over Blanco River

FairPosted for load

Naguabo Municipio, Puerto Rico · 8 KM Northwest of Naguabo · Structure no. 004561

Built
1939
86 years old
Condition
Fair
inspected February 2023
Type
Slab
Concrete Continuous
Length
43 ft
2 main spans
Daily traffic
1,000
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 191 over Blanco River is a concrete continuous slab carrying Pr 191 over Blanco River in Naguabo Municipio, Puerto Rico. It was built in 1939, so it is 86 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. Its operating status is: posted for load restriction.

It carries about 1,000 vehicles a day, roughly 2% of them trucks, projected to reach 1,300 by 2025. The structure is 43 ft (13.1 m) long and 20 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesPr 191
CrossesBlanco River
Location8 KM Northwest of Naguabo
RouteState Highway 191
CountyNaguabo Municipio
StatePuerto Rico
Coordinates18.24551, -65.79943
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating50.3 US tons
Inventory rating30.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length43 ft (13.1 m)
Longest span21 ft (6.3 m)
Deck width20 ft (6.1 m)
Roadway width17 ft (5.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2017)
Projected traffic1,300 by 2025
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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$187,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 191 over Blanco River built?

It was built in 1939, making it 86 years old in 2025.

What condition is Pr 191 over Blanco 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 February 2023.

How much traffic does Pr 191 over Blanco River carry?

About 1,000 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Pr 191 over Blanco River?

The structure is 43 ft (13.1 m) long with a longest span of 21 ft (6.3 m) and a deck 20 ft wide.

Who owns Pr 191 over Blanco River?

It is owned by the State Highway Agency.