Gilleland Creek Railroad Bridge

Gilleland Creek Railroad Bridge (TX)

Gilleland Creek Railroad Bridge (TX) the 450 ft. timber railroad bridge was built before WWII. The replacement bridge utilizes Accelerated Bridge Construction techniques using precast concrete elements. The new bridge was constructed while the timber bridge in operation. Steel H-piles were designed to be driven between the existing rails and crossing planks. Precast concrete bent caps were designed to be slid into position while the existing timber deck in place. The new superstructure consists of precast concrete box beams. SDR provided structural design, plans production, and construction support.

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I-10 CSLM 5.5 to Atchafalya Floodway

I-10 CSLM 5.5 to Atchafalya Floodway

Eight (8) bridges along I-10 interstate from CSLM 5.5 to Atchafalaya Floodway were evaluated as part of Stage 0 Study (feasibility analysis). The total bridges lengths varied from 180 ft. to 1752 ft. Superstructure comprises precast prestressed concrete (PPC) girders, steel I beams, and steel plate girders. The substructure comprises reinforced concrete (RC) hammerheads, RC column bents, and RC/PPC pile bents. The study included developing design alternatives for the widening and rehabilitation of the existing bridges.

SDR tasks included: compiling and reviewing of existing documents; in-depth inspection; structural evaluation and load rating of existing bridges; design of rehabilitation of existing bridges, and design of widening. SDR study concluded that selective intervention and widening are more feasible and more economic than replacement, while maintaining the structural performance and integrity.

H 003014 - I-10 Widening Report 4
H 003014 - I-10 Widening Report 1
H 003014 - I-10 Widening Report 2
H 003014 - I-10 Widening Report 3
H 003014 - I-10 Widening Report 5
H 003014 - I-10 Widening Report
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I-10 Lafayette Parish Line to CSLM 5.5​

I-10 Lafayette Parish Line to CSLM 5.5

Six (6) bridges along I-10 interstate from Lafayette Parish line to CSLM 5.5 were evaluated as part of Stage 0 Study (feasibility analysis). The total bridges lengths varied from 198 ft. to 1275 ft. Superstructure comprises precast prestressed concrete (PPC) girders, steel I beams, and steel plate girders. The substructure comprises reinforced concrete (RC) hammerheads, RC column bents, and RC/PPC pile bents. The study included developing design alternatives for the widening and rehabilitation of the existing bridges.

SDR tasks included: compiling and reviewing of existing documents; in-depth inspection; structural evaluation and load rating of existing bridges; design of rehabilitation of existing bridges, and design of widening. SDR study concluded that selective intervention and widening are more feasible and more economic than replacement, while maintaining the structural performance and integrity.

H 010601 - I-10 Widening Report
H 010601 - I-10 Widening Report 1
H 010601 - I-10 Widening Report 3
H 010601 - I-10 Widening Report 4
H 010601 - I-10 Widening Report 5
H 010601 - I-10 Widening Report 6
H 010601 - I-10 Widening Report 7
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