US Bridges

Pr 128 29.1 KM over Indiera River

PoorPosted for load

Maricao Municipio, Puerto Rico · 12 KM East of Maricao · Structure no. 002601

Built
1921
104 years old
Condition
Poor
inspected September 2024
Type
Slab
Concrete Continuous
Length
40 ft
2 main spans
Daily traffic
500
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 128 29.1 KM over Indiera River is a concrete continuous slab carrying Pr 128 29.1 KM over Indiera River in Maricao Municipio, Puerto Rico. It was built in 1921, so it is 104 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. Its operating status is: posted for load restriction.

It carries about 500 vehicles a day, roughly 3% of them trucks, projected to reach 600 by 2025. The structure is 40 ft (12.3 m) long and 20 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesPr 128 29.1 KM
CrossesIndiera River
Location12 KM East of Maricao
RouteState Highway 128
CountyMaricao Municipio
StatePuerto Rico
Coordinates18.1595, -66.87771
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating14.6 US tons
Inventory rating9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length40 ft (12.3 m)
Longest span19 ft (5.7 m)
Deck width20 ft (6.1 m)
Roadway width16 ft (5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2017)
Projected traffic600 by 2025
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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$338,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 128 29.1 KM over Indiera River built?

It was built in 1921, making it 104 years old in 2025.

What condition is Pr 128 29.1 KM over Indiera 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 September 2024.

How much traffic does Pr 128 29.1 KM over Indiera River carry?

About 500 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is Pr 128 29.1 KM over Indiera River?

The structure is 40 ft (12.3 m) long with a longest span of 19 ft (5.7 m) and a deck 20 ft wide.

Who owns Pr 128 29.1 KM over Indiera River?

It is owned by the State Highway Agency.