US Bridges

Off Pr 852 over Unknown Creek

Good

Trujillo Alto Municipio, Puerto Rico · 8KM SE of Trujillo Alto · Structure no. 026971

Built
2003
22 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete Continuous
Length
65 ft
3 main spans
Daily traffic
100
2005 count
Owner
City
City or Municipal Highway Agency

About this bridge

Off Pr 852 over Unknown Creek is a concrete continuous culvert carrying Off Pr 852 over Unknown Creek in Trujillo Alto Municipio, Puerto Rico. It was built in 2003, so it is 22 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 good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 100 vehicles a day, roughly 2% of them trucks, projected to reach 150 by 2025. The structure is 65 ft (19.7 m) long and 19 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

Location

Open in Google Maps
CarriesOff Pr 852
CrossesUnknown Creek
Location8KM SE of Trujillo Alto
RouteCounty Highway 0
CountyTrujillo Alto Municipio
StatePuerto Rico
Coordinates18.30693, -65.96383
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating57 US tons
Inventory rating34.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 10
Structure length65 ft (19.7 m)
Longest span24 ft (7.2 m)
Deck width19 ft (5.9 m)
Roadway width18 ft (5.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2005)
Projected traffic150 by 2025
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed12.4 mi (20 km)
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$584,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Off Pr 852 over Unknown Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is Off Pr 852 over Unknown Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does Off Pr 852 over Unknown Creek carry?

About 100 vehicles per day (2005 count), of which roughly 2% are trucks.

How long is Off Pr 852 over Unknown Creek?

The structure is 65 ft (19.7 m) long with a longest span of 24 ft (7.2 m) and a deck 19 ft wide.

Who owns Off Pr 852 over Unknown Creek?

It is owned by the City or Municipal Highway Agency.