DEL 896 US71 301S

over C&D CANAL

9 MI W OF REEDY POINT, New Castle County, Delaware

Condition

Fair

Year Built

1959

Daily Traffic

26,840

Length

206 ft

About This Bridge

DEL 896 US71 301S carries traffic over C&D CANAL in New Castle County, Delaware. Built in 1959, this structure is 67 years old, placing it among the older bridges still in active service. The bridge features steel construction with a truss - thru design, a combination chosen by engineers to meet the specific requirements of this crossing.

Approximately 26,840 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. Commercial trucks account for 25% of all crossings. This heavy commercial usage significantly impacts structural wear, as a single fully-loaded truck can cause as much deck wear as thousands of passenger vehicles. Transportation planners factor this into maintenance scheduling and budget allocation.

The bridge is currently rated in fair condition based on federal inspection criteria established by the Federal Highway Administration. The structure meets current safety standards for its designated use and load capacity. With a total length of 206 feet, this structure falls within the typical range requiring standard inspection procedures conducted by certified bridge inspectors.

Steel bridges provide high strength-to-weight ratios, making them suitable for longer spans. However, they require ongoing protection against corrosion through painting or weathering steel designs. Inspectors pay close attention to connection points, fatigue cracking, and coating condition.

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

6

Deck Condition

Satisfactory

5

Superstructure

Fair

6

Substructure

Satisfactory

8

Channel & Protection

Very Good

5

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 fair condition rating of 5 indicates some deterioration that warrants monitoring but doesn't affect structural integrity.

For a structure built in 1959, this condition level is expected given the bridge's age and usage patterns. High traffic volumes on a bridge in fair or poor condition typically elevate its priority for rehabilitation or replacement in state transportation planning.

Bridge Details

Steel is the primary structural material, which influences maintenance requirements and expected lifespan. The truss - thru design was selected based on span requirements, load capacity needs, and site conditions at the time of construction. Maintenance responsibility falls to Corps of Engineers.

Construction

Year Built1959
Year Reconstructed1987
MaterialSteel
Design TypeTruss - Thru
OwnerCorps of Engineers

Dimensions

Total Length206 ft (62.7 m)
Max Span60 ft (18.3 m)
Deck Width6 ft
Deck Area12,232 sq ft

Span dimensions affect structural design choices and load distribution. The deck area of 12,232 sq ft determines surface maintenance scope.

Classification

Route TypeState Highway
Route Number896
Lanes On Bridge4
Lanes Under Bridge

Status

Toll BridgeNo
Historical SignificanceNot eligible
Scour Critical7
Detour Length3 mi (5 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.

26,840

Avg Daily Traffic (2020)

Vehicles per day crossing this bridge

25%

Truck Traffic

Commercial vehicle percentage

61,724

Projected Future ADT

Estimated future demand

This bridge carries approximately 26,840 vehicles per day, translating to roughly 9,796,600 crossings annually. This moderate traffic level is typical for regional connectors.

Commercial trucks comprise 25% 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. This high percentage of truck traffic may accelerate deterioration of deck surfaces and structural components.

Traffic projections estimate future volumes of 61,724 vehicles daily, a 130% 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

2.8 tons

Maximum allowable load for special permits

Inventory Rating

2.1 tons

Load level for normal traffic

The operating rating of 2.8 tons represents the absolute maximum load this bridge can carry under controlled conditions with special permits. The inventory rating of 2.1 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

Declining

Condition has declined by 1.0 rating points since 2020

Data: 2020-2024 FHWA National Bridge Inventory

Location

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40.283333, -76.233333

Identification

Structure Number000000001494016
NBI IDDE-000000001494016
State FIPS10
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.

DEL 896 US71 301S over C&D CANAL | Delaware