US Bridges

Pr 181 6.0 KM over Coqui Creek

Fair

Patillas Municipio, Puerto Rico · 2.8 KM North of Patillas · Structure no. 004061

Built
1940
85 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
35 ft
1 main span
Daily traffic
600
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 181 6.0 KM over Coqui Creek is a steel stringer/multi-beam or girder carrying Pr 181 6.0 KM over Coqui Creek in Patillas Municipio, Puerto Rico. It was built in 1940, 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 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 600 vehicles a day, roughly 5% of them trucks, projected to reach 900 by 2025. The structure is 35 ft (10.7 m) long and 23 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesPr 181 6.0 KM
CrossesCoqui Creek
Location2.8 KM North of Patillas
RouteState Highway 181
CountyPatillas Municipio
StatePuerto Rico
Coordinates18.03863, -65.99656
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating55.8 US tons
Inventory rating29.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length35 ft (10.7 m)
Longest span35 ft (10.7 m)
Deck width23 ft (7.1 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2017)
Projected traffic900 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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$215,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 181 6.0 KM over Coqui Creek built?

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

What condition is Pr 181 6.0 KM over Coqui Creek 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 November 2023.

How much traffic does Pr 181 6.0 KM over Coqui Creek carry?

About 600 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Pr 181 6.0 KM over Coqui Creek?

The structure is 35 ft (10.7 m) long with a longest span of 35 ft (10.7 m) and a deck 23 ft wide.

Who owns Pr 181 6.0 KM over Coqui Creek?

It is owned by the State Highway Agency.