US Bridges

Off Pr 378 KM 3.8 over Guayanilla River

Poor

Guayanilla Municipio, Puerto Rico · 6 KM North of Guayanilla · Structure no. 016251

Built
1977
48 years old
Condition
Poor
inspected November 2024
Type
Slab
Concrete Continuous
Length
44 ft
3 main spans
Daily traffic
400
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

Off Pr 378 KM 3.8 over Guayanilla River is a concrete continuous slab carrying Off Pr 378 KM 3.8 over Guayanilla River in Guayanilla Municipio, Puerto Rico. It was built in 1977, so it is 48 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 poor condition with a lowest component rating of 2 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 400 vehicles a day, roughly 2% of them trucks, projected to reach 500 by 2025. The structure is 44 ft (13.4 m) long and 29 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesOff Pr 378 KM 3.8
CrossesGuayanilla River
Location6 KM North of Guayanilla
RouteCounty Highway 0
CountyGuayanilla Municipio
StatePuerto Rico
Coordinates18.07428, -66.79392
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; extensive scour has occurred
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating44.3 US tons
Inventory rating34.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length44 ft (13.4 m)
Longest span14 ft (4.4 m)
Deck width29 ft (8.8 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2017)
Projected traffic500 by 2025
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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$431,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Off Pr 378 KM 3.8 over Guayanilla River built?

It was built in 1977, making it 48 years old in 2025.

What condition is Off Pr 378 KM 3.8 over Guayanilla 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 November 2024.

How much traffic does Off Pr 378 KM 3.8 over Guayanilla River carry?

About 400 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Off Pr 378 KM 3.8 over Guayanilla River?

The structure is 44 ft (13.4 m) long with a longest span of 14 ft (4.4 m) and a deck 29 ft wide.

Who owns Off Pr 378 KM 3.8 over Guayanilla River?

It is owned by the City or Municipal Highway Agency.