PENSACOLA STREET

over PENSACOLA RELIEF DRAIN

TMK=2-3-007&2-3-010, Honolulu County, Hawaii

Condition

Poor

Year Built

1970

Daily Traffic

16,994

Length

126 ft

About This Bridge

PENSACOLA STREET carries traffic over PENSACOLA RELIEF DRAIN in Honolulu County, Hawaii. Built in 1970, this structure is 56 years old, placing it among the older bridges still in active service. The bridge features concrete construction with a culvert design, a combination chosen by engineers to meet the specific requirements of this crossing.

Approximately 16,994 vehicles cross this bridge daily, representing moderate traffic volumes typical of important regional connectors. This level of usage requires regular monitoring to ensure continued safe operation.

The bridge is currently rated in poor condition based on federal inspection criteria established by the Federal Highway Administration. It is classified as structurally deficient, meaning one or more components have received a rating of 4 or below on the 0-9 scale. This designation indicates significant deterioration that warrants attention, though the bridge remains safe for travel within its posted limits. Structurally deficient does not mean unsafe—rather, it signals that repairs or replacement should be prioritized in transportation planning. With a total length of 126 feet, this structure falls within the typical range requiring standard inspection procedures conducted by certified bridge inspectors.

Concrete bridges offer excellent durability and relatively low maintenance requirements. They resist corrosion well but can develop cracking over time, particularly in regions with freeze-thaw cycles or heavy use of deicing chemicals. Regular inspection focuses on detecting cracks, spalling, and reinforcement corrosion.

Federal law requires that all highway bridges be inspected at least every 24 months by qualified inspectors following the National Bridge Inspection Standards (NBIS). Some bridges with known issues or unusual characteristics may be inspected more frequently. Inspection data is reported to the National Bridge Inventory, a database maintained by the Federal Highway Administration that tracks the condition of all public highway bridges in the United States. This bridge data is sourced from that federal database and reflects the most recent available inspection results.

Condition Ratings

Structurally Deficient

This bridge has one or more component ratings of 4 or below, indicating significant deterioration that requires attention. The bridge remains safe for travel but may have load restrictions.

Deck Condition

N/A

Superstructure

N/A

Substructure

N/A

4

Culvert

Poor

Channel & Protection

N/A

4

Lowest Rating

Determines condition category

NBI condition ratings range from 0 (failed) to 9 (excellent). Ratings of 4 or below are considered poor. The overall condition category is determined by the lowest individual component rating.

For a structure built in 1970, the current condition reflects the cumulative effects of age, traffic, and environmental exposure.

Bridge Details

Concrete is the primary structural material, which influences maintenance requirements and expected lifespan. The culvert design was selected based on span requirements, load capacity needs, and site conditions at the time of construction. Maintenance responsibility falls to County Highway Agency.

Construction

Year Built1970
MaterialConcrete
Design TypeCulvert
OwnerCounty Highway Agency

Dimensions

Total Length126 ft (38.3 m)
Max Span1 ft (0.4 m)
Deck Width
Deck Area7,009 sq ft

Span dimensions affect structural design choices and load distribution. The deck area of 7,009 sq ft determines surface maintenance scope.

Classification

Route TypeCity Street
Route Number0
Lanes On Bridge4
Lanes Under Bridge

Status

Toll BridgeNo
Historical SignificanceNot eligible
Scour CriticalU
Detour Length

Traffic Data

Traffic volume data helps engineers assess bridge wear patterns and plan maintenance schedules. Average Daily Traffic (ADT) counts are updated periodically and represent typical weekday usage.

16,994

Avg Daily Traffic (2018)

Vehicles per day crossing this bridge

Truck Traffic

Commercial vehicle percentage

20,392

Projected Future ADT

Estimated future demand

This bridge carries approximately 16,994 vehicles per day, translating to roughly 6,202,810 crossings annually. This moderate traffic level is typical for regional connectors.

Traffic projections estimate future volumes of 20,392 vehicles daily, a 20% increase from current levels. These projections inform capacity planning and potential upgrade requirements.

Load Ratings

Load ratings determine what weight this bridge can safely support. These values are critical for routing heavy vehicles and issuing overweight permits.

Operating Rating

3.2 tons

Maximum allowable load for special permits

Inventory Rating

2.5 tons

Load level for normal traffic

The operating rating of 3.2 tons represents the absolute maximum load this bridge can carry under controlled conditions with special permits. The inventory rating of 2.5 tons is the safe load limit for everyday traffic without restrictions. These relatively low ratings may result in posted weight limits or route restrictions for heavy vehicles.

5-Year Condition Trend

Stable

Condition has remained relatively stable since 2020

Status Changes

  • Exited poor condition in 2023
  • No longer structurally deficient as of 2023
  • Entered poor condition in 2024
  • Became structurally deficient in 2024

Data: 2020-2024 FHWA National Bridge Inventory

Location

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22.316111, -159.353056

Identification

Structure Number003200001700001
NBI IDHI-003200001700001
State FIPS15
County FIPS003

Explore More

Data Source: Federal Highway Administration (FHWA) National Bridge Inventory 2024

Bridge inspection data is typically updated every 24 months. Conditions may have changed since the last inspection.

“Structurally deficient” does not mean a bridge is unsafe or likely to collapse. It indicates that one or more key structural elements are in poor or worse condition. Bridges are inspected regularly and may have load restrictions in place.

This data is for informational purposes only and should not be used for route clearance or vehicle weight decisions.

PENSACOLA STREET over PENSACOLA RELIEF DRAIN | Hawaii