US Bridges

Pr 177 7.15 KM over Pr 1 16.35 KM

Poor

San Juan Municipio, Puerto Rico · 9 KM S E of San Juan · Structure no. 010921

Built
1976
49 years old, rebuilt 1990
Condition
Poor
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
257 ft
1 main span
Daily traffic
27,600
2017 count
Owner
State
State Highway Agency

About this bridge

Pr 177 7.15 KM over Pr 1 16.35 KM is a prestressed concrete stringer/multi-beam or girder carrying Pr 177 7.15 KM over Pr 1 16.35 KM in San Juan Municipio, Puerto Rico. It was built in 1976 and reconstructed in 1990, so it is 49 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.

It carries about 27,600 vehicles a day, roughly 5% of them trucks, projected to reach 32,300 by 2025. The structure is 257 ft (78.4 m) long and 121 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesPr 177 7.15 KM
CrossesPr 1 16.35 KM
Location9 KM S E of San Juan
RouteState Highway 177
CountySan Juan Municipio
StatePuerto Rico
Coordinates18.3672, -66.0811
Functional classUrban Other Principal Arterial

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating70.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length257 ft (78.4 m)
Longest span101 ft (30.9 m)
Deck width121 ft (36.9 m)
Roadway width106 ft (32.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,600 (2017)
Projected traffic32,300 by 2025
Trucks5%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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$3.5 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Pr 177 7.15 KM over Pr 1 16.35 KM built?

It was built in 1976, making it 49 years old in 2025. It was reconstructed in 1990.

What condition is Pr 177 7.15 KM over Pr 1 16.35 KM 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 June 2024.

How much traffic does Pr 177 7.15 KM over Pr 1 16.35 KM carry?

About 27,600 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Pr 177 7.15 KM over Pr 1 16.35 KM?

The structure is 257 ft (78.4 m) long with a longest span of 101 ft (30.9 m) and a deck 121 ft wide.

Who owns Pr 177 7.15 KM over Pr 1 16.35 KM?

It is owned by the State Highway Agency.