US Bridges

Pr 181 over Infierno Creek

Fair

Trujillo Alto Municipio, Puerto Rico · 3 KM S E of Trujillo Alto · Structure no. 004261

Built
1925
100 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
29 ft
1 main span
Daily traffic
13,400
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 181 over Infierno Creek is a steel stringer/multi-beam or girder carrying Pr 181 over Infierno Creek in Trujillo Alto Municipio, Puerto Rico. It was built in 1925, so it is 100 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 13,400 vehicles a day, roughly 5% of them trucks, projected to reach 17,400 by 2025. The structure is 29 ft (8.7 m) long and 24 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesPr 181
CrossesInfierno Creek
Location3 KM S E of Trujillo Alto
RouteState Highway 181
CountyTrujillo Alto Municipio
StatePuerto Rico
Coordinates18.33778, -65.98941
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 inspectionAugust 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44.3 US tons
Inventory rating34.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length29 ft (8.7 m)
Longest span29 ft (8.7 m)
Deck width24 ft (7.2 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,400 (2017)
Projected traffic17,400 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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$272,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 181 over Infierno Creek built?

It was built in 1925, making it 100 years old in 2025.

What condition is Pr 181 over Infierno 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 August 2023.

How much traffic does Pr 181 over Infierno Creek carry?

About 13,400 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Pr 181 over Infierno Creek?

The structure is 29 ft (8.7 m) long with a longest span of 29 ft (8.7 m) and a deck 24 ft wide.

Who owns Pr 181 over Infierno Creek?

It is owned by the State Highway Agency.