US Bridges

Pr 997 7.8 KM over LA Mina Creek

FairPosted for load

Vieques Municipio, Puerto Rico · 7.8 KM S W of Isabel II · Structure no. 017321

Built
1981
44 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete Continuous
Length
71 ft
2 main spans
Daily traffic
3,500
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 997 7.8 KM over LA Mina Creek is a concrete continuous slab carrying Pr 997 7.8 KM over LA Mina Creek in Vieques 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 5 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: posted for load restriction.

It carries about 3,500 vehicles a day, roughly 4% of them trucks, projected to reach 4,700 by 2025. The structure is 71 ft (21.6 m) long and 38 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesPr 997 7.8 KM
CrossesLA Mina Creek
Location7.8 KM S W of Isabel II
RouteState Highway 997
Coordinates18.09945, -65.46774
Functional classRural 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.8 US tons
Inventory rating17.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length71 ft (21.6 m)
Longest span34 ft (10.4 m)
Deck width38 ft (11.5 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,500 (2017)
Projected traffic4,700 by 2025
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$581,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 997 7.8 KM over LA Mina Creek built?

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

What condition is Pr 997 7.8 KM over LA Mina 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 August 2024.

How much traffic does Pr 997 7.8 KM over LA Mina Creek carry?

About 3,500 vehicles per day (2017 count), of which roughly 4% are trucks.

How long is Pr 997 7.8 KM over LA Mina Creek?

The structure is 71 ft (21.6 m) long with a longest span of 34 ft (10.4 m) and a deck 38 ft wide.

Who owns Pr 997 7.8 KM over LA Mina Creek?

It is owned by the State Highway Agency.