US Bridges

Hydra Street over Channel

Fair

Carolina Municipio, Puerto Rico · At LA Marina Development · Structure no. 017781

Built
1981
44 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
37 ft
1 main span
Daily traffic
600
2005 count
Owner
City
City or Municipal Highway Agency

About this bridge

Hydra Street over Channel is a prestressed concrete box beam or girders - multiple carrying Hydra Street over Channel in Carolina Municipio, Puerto Rico. It was built in 1981, so it is 44 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 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.

It carries about 600 vehicles a day, roughly 5% of them trucks, projected to reach 725 by 2025. The structure is 37 ft (11.4 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesHydra Street
CrossesChannel
LocationAt LA Marina Development
RouteCity Street 0
CountyCarolina Municipio
StatePuerto Rico
Coordinates18.4273, -66.00573
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.3 US tons
Inventory rating42.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length37 ft (11.4 m)
Longest span33 ft (10 m)
Deck width40 ft (12.3 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2005)
Projected traffic725 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$317,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Hydra Street over Channel built?

It was built in 1981, making it 44 years old in 2025.

What condition is Hydra Street over Channel 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 July 2023.

How much traffic does Hydra Street over Channel carry?

About 600 vehicles per day (2005 count), of which roughly 5% are trucks.

How long is Hydra Street over Channel?

The structure is 37 ft (11.4 m) long with a longest span of 33 ft (10 m) and a deck 40 ft wide.

Who owns Hydra Street over Channel?

It is owned by the City or Municipal Highway Agency.