US Bridges

Pr 555 over Coamo River

Poor

Coamo Municipio, Puerto Rico · @ 9.3 Kms Nth. of Coamo · Structure no. 026811

Built
1951
74 years old
Condition
Poor
inspected May 2023
Type
Slab
Concrete Continuous
Length
43 ft
6 main spans
Daily traffic
600
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 555 over Coamo River is a concrete continuous slab carrying Pr 555 over Coamo River in Coamo Municipio, Puerto Rico. It was built in 1951, 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 0 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: open, temporary structure in place while original is closed.

It carries about 600 vehicles a day, roughly 4% of them trucks, projected to reach 900 by 2025. The structure is 43 ft (13.2 m) long and 16 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesPr 555
CrossesCoamo River
Location@ 9.3 Kms Nth. of Coamo
RouteState Highway 555
Coordinates18.14199, -66.36347
Functional classRural Local

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
Deck0 FailedOut of service and beyond corrective action.
Superstructure0 FailedOut of service and beyond corrective action.
Substructure0 FailedOut of service and beyond corrective action.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, temporary structure in place while original is closed
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry2: Basically intolerable, requiring high priority of replacement
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 rating10.4 US tons
Inventory rating0 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6 (+6 approach)
Design loadH 20
Structure length43 ft (13.2 m)
Longest span7 ft (2 m)
Deck width16 ft (5 m)
Roadway width14 ft (4.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2017)
Projected traffic900 by 2025
Trucks4%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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$175,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pr 555 over Coamo River built?

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

What condition is Pr 555 over Coamo 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 May 2023.

How much traffic does Pr 555 over Coamo River carry?

About 600 vehicles per day (2017 count), of which roughly 4% are trucks.

How long is Pr 555 over Coamo River?

The structure is 43 ft (13.2 m) long with a longest span of 7 ft (2 m) and a deck 16 ft wide.

Who owns Pr 555 over Coamo River?

It is owned by the State Highway Agency.