LOW-WATER BRDG. RD

over STEELE BAYOU

SEC 31 T10N R 7W B, Sharkey County, Mississippi

Condition

Poor

Year Built

1962

Daily Traffic

170

Length

56 ft

About This Bridge

LOW-WATER BRDG. RD carries traffic over STEELE BAYOU in Sharkey County, Mississippi. Built in 1962, this structure is 64 years old, placing it among the older bridges still in active service. The bridge features concrete construction with a stringer/multi-beam or girder design, a combination chosen by engineers to meet the specific requirements of this crossing.

Approximately 170 vehicles cross this bridge daily, indicating lower traffic volumes common for local roads and rural routes. While traffic is lighter, these bridges still serve essential community transportation needs. Commercial trucks account for 15% of all crossings. This proportion of commercial traffic is typical for this roadway classification and is factored into the bridge's design load ratings.

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 56 feet, this is a shorter span typical of local road crossings, often carrying traffic over small streams, drainage channels, or other roadways.

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.

6

Deck Condition

Satisfactory

5

Superstructure

Fair

2

Substructure

Critical

6

Channel & Protection

Satisfactory

2

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.

The substructure rating of 2 reflects critical foundation or pier problems.

For a structure built in 1962, the current condition reflects the cumulative effects of age, traffic, and environmental exposure. If this bridge were closed, traffic would face a detour of approximately 8 miles, underscoring the importance of maintaining this crossing.

Bridge Details

Concrete is the primary structural material, which influences maintenance requirements and expected lifespan. The stringer/multi-beam or girder 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 Built1962
MaterialConcrete
Design TypeStringer/Multi-beam or Girder
OwnerCounty Highway Agency

Dimensions

Total Length56 ft (17.1 m)
Max Span4 ft (1.2 m)
Deck Width3 ft
Deck Area1,280 sq ft

Span dimensions affect structural design choices and load distribution. The deck area of 1,280 sq ft determines surface maintenance scope.

Classification

Route TypeCounty Road
Route Number1426
Lanes On Bridge2
Lanes Under Bridge

Status

Toll BridgeNo
Historical SignificanceNot eligible
Scour CriticalU
Detour Length8 mi (13 km)

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.

170

Avg Daily Traffic (2021)

Vehicles per day crossing this bridge

15%

Truck Traffic

Commercial vehicle percentage

255

Projected Future ADT

Estimated future demand

This bridge carries approximately 170 vehicles per day, translating to roughly 62,050 crossings annually. Lower traffic volumes generally result in less structural wear over time.

Commercial trucks comprise 15% of traffic. Heavy vehicles cause disproportionate wear—a single fully loaded truck can have the impact of thousands of passenger cars on bridge deck surfaces.

Traffic projections estimate future volumes of 255 vehicles daily, a 50% 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

Maximum allowable load for special permits

Inventory Rating

Load level for normal traffic

5-Year Condition Trend

Stable

Condition has remained relatively stable since 2020

Data: 2020-2024 FHWA National Bridge Inventory

Location

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32.980833, -91.461111

Identification

Structure NumberSA6300000000004
NBI IDMS-SA6300000000004
State FIPS28
County FIPS125

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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.

LOW-WATER BRDG. RD over STEELE BAYOU | Mississippi