
2025 – Bridges 1-488N&S on N001 US 13 over Blackbird Creek
State: DE
Year: 2025
Owner: State
Location: Rural
Beam material: Concrete
Spans: One-span
Max Span Length (ft.): 120
Total Bridge Length (ft.): 120
Impact Category: Tier 5 (within 3 months)
Construction Equipment Category: Other ABC Method
Project Planning: State process, benefit/cost method,
design-bid-build,
full lane closure, incentive / disincentive clause
Geotechnical Solutions: high-capacity pile,
lightweight fill
Structural Solutions: adjacent deck bulb T beam, precast abutment cap, proprietary wall,
precast approach slab, prefabricated railing, steel diaphragm; other miscellaneous prefabricated element – precast sleeper slab, precast moment slab; HESt-LSh concrete joint {high early-strength low-shrinkage concrete joint}, UHPC closure joint, socket connection

2017 – Bridge 1-438 on N463 Blackbird Station Road over Blackbird Creek
State: DE
Year: 2017
Owner: State
Location: Rural
Beam material: Concrete
Spans: One-span
Max Span Length (ft.): 50
Total Bridge Length (ft.): 50
Impact Category: Tier 4 (within 1 month)
Construction Equipment Category: Conventional
Project Planning: design-bid-build,
Geotechnical Solutions: other foundation/wall - precast prestressed piles,
Structural Solutions: adjacent box beam, precast abutment cap, precast wingwall,
precast curb, prefabricated railing, UHPC closure joint, socket connection, UHPC overlay

