US Bridges

Pr 824 0.7 KM over LA Plata River

Poor

Toa Alta Municipio, Puerto Rico · 1.7 KM South of Toa Alta · Structure no. 006181

Built
1951
74 years old, rebuilt 1987
Condition
Poor
inspected October 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
246 ft
3 main spans
Daily traffic
8,700
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 824 0.7 KM over LA Plata River is a concrete continuous box beam or girders - multiple carrying Pr 824 0.7 KM over LA Plata River in Toa Alta Municipio, Puerto Rico. It was built in 1951 and reconstructed in 1987, so it is 74 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 8,700 vehicles a day, roughly 4% of them trucks, projected to reach 12,500 by 2025. The structure is 246 ft (74.9 m) long and 24 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesPr 824 0.7 KM
CrossesLA Plata River
Location1.7 KM South of Toa Alta
RouteState Highway 824
Coordinates18.37135, -66.2453
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating66.7 US tons
Inventory rating39.8 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length246 ft (74.9 m)
Longest span52 ft (15.9 m)
Deck width24 ft (7.4 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,700 (2017)
Projected traffic12,500 by 2025
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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$1.4 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 824 0.7 KM over LA Plata River built?

It was built in 1951, making it 74 years old in 2025. It was reconstructed in 1987.

What condition is Pr 824 0.7 KM over LA Plata River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does Pr 824 0.7 KM over LA Plata River carry?

About 8,700 vehicles per day (2017 count), of which roughly 4% are trucks.

How long is Pr 824 0.7 KM over LA Plata River?

The structure is 246 ft (74.9 m) long with a longest span of 52 ft (15.9 m) and a deck 24 ft wide.

Who owns Pr 824 0.7 KM over LA Plata River?

It is owned by the State Highway Agency.