US Bridges

Pr 851 4.1 KM over Infierno Creek

Fair

Trujillo Alto Municipio, Puerto Rico · 6 KM South Trujillo Alto · Structure no. 010411

Built
1965
60 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
20 ft
2 main spans
Daily traffic
2,100
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 851 4.1 KM over Infierno Creek is a concrete culvert carrying Pr 851 4.1 KM over Infierno Creek in Trujillo Alto Municipio, Puerto Rico. It was built in 1965, so it is 60 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 6 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: open, posting recommended but not legally implemented.

It carries about 2,100 vehicles a day, roughly 5% of them trucks, projected to reach 3,000 by 2025. The structure is 20 ft (6.2 m) long and 39 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesPr 851 4.1 KM
CrossesInfierno Creek
Location6 KM South Trujillo Alto
RouteState Highway 851
CountyTrujillo Alto Municipio
StatePuerto Rico
Coordinates18.31112, -66.00205
Functional classUrban 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, posting recommended but not legally implemented
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating35.3 US tons
Inventory rating21.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length20 ft (6.2 m)
Longest span10 ft (3 m)
Deck width39 ft (11.8 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,100 (2017)
Projected traffic3,000 by 2025
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$156,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 851 4.1 KM over Infierno Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is Pr 851 4.1 KM 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 October 2024.

How much traffic does Pr 851 4.1 KM over Infierno Creek carry?

About 2,100 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Pr 851 4.1 KM over Infierno Creek?

The structure is 20 ft (6.2 m) long with a longest span of 10 ft (3 m) and a deck 39 ft wide.

Who owns Pr 851 4.1 KM over Infierno Creek?

It is owned by the State Highway Agency.