US Bridges

Off Pr 135 KM 11.5 over Unknown River

Fair

Adjuntas Municipio, Puerto Rico · Carr Los Escobales · Structure no. 031161

Built
1980
45 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
36 ft
2 main spans
Daily traffic
2,300
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

Off Pr 135 KM 11.5 over Unknown River is a concrete stringer/multi-beam or girder carrying Off Pr 135 KM 11.5 over Unknown River in Adjuntas Municipio, Puerto Rico. It was built in 1980, so it is 45 years old, younger 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 2,300 vehicles a day, projected to reach 3,100 by 2025. The structure is 36 ft (11.1 m) long and 16 ft wide.

Location

Open in Google Maps
CarriesOff Pr 135 KM 11.5
CrossesUnknown River
LocationCarr Los Escobales
RouteCity Street 0_
CountyAdjuntas Municipio
StatePuerto Rico
Coordinates18.18817, -66.80081
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionSeptember 2024
Inspection intervalevery 12 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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating49.4 US tons
Inventory rating29.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length36 ft (11.1 m)
Longest span18 ft (5.5 m)
Deck width16 ft (4.8 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,300 (2017)
Projected traffic3,100 by 2025
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Off Pr 135 KM 11.5 over Unknown River built?

It was built in 1980, making it 45 years old in 2025.

What condition is Off Pr 135 KM 11.5 over Unknown 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 September 2024.

How much traffic does Off Pr 135 KM 11.5 over Unknown River carry?

About 2,300 vehicles per day (2017 count).

How long is Off Pr 135 KM 11.5 over Unknown River?

The structure is 36 ft (11.1 m) long with a longest span of 18 ft (5.5 m) and a deck 16 ft wide.

Who owns Off Pr 135 KM 11.5 over Unknown River?

It is owned by the City or Municipal Highway Agency.