US Bridges

Off Pr 173 over Grande Creek

Poor

Aibonito Municipio, Puerto Rico · 0.32KM North of Pr 173 · Structure no. 023941

Built
1977
48 years old
Condition
Poor
inspected March 2025
Type
Tee Beam
Concrete
Length
96 ft
3 main spans
Daily traffic
150
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

Off Pr 173 over Grande Creek is a concrete tee beam carrying Off Pr 173 over Grande Creek in Aibonito 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 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: open, posting recommended but not legally implemented.

It carries about 150 vehicles a day, roughly 1% of them trucks, projected to reach 225 by 2025. The structure is 96 ft (29.2 m) long and 16 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesOff Pr 173
CrossesGrande Creek
Location0.32KM North of Pr 173
RouteCounty Highway 0
Coordinates18.15738, -66.23618
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.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMarch 2025
Inspection intervalevery 12 months
Operating statusOpen, posting recommended but not legally implemented
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating28.4 US tons
Inventory rating21.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length96 ft (29.2 m)
Longest span39 ft (11.9 m)
Deck width16 ft (4.8 m)
Roadway width14 ft (4.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2017)
Projected traffic225 by 2025
Trucks1%
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

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Off Pr 173 over Grande Creek built?

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

What condition is Off Pr 173 over Grande Creek 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 March 2025.

How much traffic does Off Pr 173 over Grande Creek carry?

About 150 vehicles per day (2017 count), of which roughly 1% are trucks.

How long is Off Pr 173 over Grande Creek?

The structure is 96 ft (29.2 m) long with a longest span of 39 ft (11.9 m) and a deck 16 ft wide.

Who owns Off Pr 173 over Grande Creek?

It is owned by the City or Municipal Highway Agency.