The Metropolitan Airport Commission (MAC) worked with SRF to design and construct a 10,000-stall parking facility at the Humphrey Terminal. As the structural Engineer of Record (EOR), SRF was retained to perform construction administration and Special Structural Inspections. 

SRF worked closely with the contractor, material testing firm, and MAC code officials to coordinate and perform the necessary inspections. The Special Inspection requirements of the International Building Code (IBC) are often performed by the EOR in conjunction with a material testing firm. This organization improves response time to field questions and increases inspection quality by including the individuals involved with the design in construction observation. As part of the ramp and building construction, SRF staff performed structural inspections in the following areas:

• Post-tensioned concrete
• Reinforced concrete
• Structural steel framing
• Masonry

The City of Sauk Rapids collaborated with Stearns and Benton Counties, City of Saint Cloud, LeSauk Township, Saint Cloud APO, MnDOT, and BNSF Railway Company to construct a new bridge over the Mississippi River to replace the aging two-lane bridge. The new Sauk Rapids Regional Bridge provides grade separation and a pedestrian helix ramp to an area park. The project also included reconstructing and realigning approximately 1,300 feet of Benton Drive South from 1st Street South to 4th Street North as a four-lane divided roadway.

In addition to preparing preliminary and final bridge plans and contract documents for bidding purposes, SRF assisted with construction administration of the bridge. SRF’s duties included on-site construction observation of all aspects of the bridge construction, including:

• Pile driving
• Drilled shaft construction
• Steel erection
• Substructure and superstructure concrete construction

Awards

• 2008 MSPE Seven Wonders of Engineering
• 2008 MCEA Project of the Year

SRF worked with the City of Champlin to design and construct a pedestrian and bicycle bridge over TH 169. For this Federal Aid project, we performed all the necessary construction administration services, including project meetings, bridge and trail observation, labor compliance, pay requests, shop plan reviews, and preparation of federal aid project documentation.

The constructed bridge is a nine-span, 870-foot-long prestressed beam bridge that serves as a City gateway. Bridge features include decorative concrete piers and concrete form liners that replicate the cut stone of the Champlin civic buildings as well as ornamental lighting and decorative steel railings.

Prior to and during construction of the bridge, SRF coordinated with local businesses for site access and to minimize construction impacts. To minimize impacts, the contract included vibration monitoring, tree protection, and turf re-establishment at the end of the project. In addition, the west abutment was built adjacent to a retention pond, so sheet piling was required as part of the foundation preparation and construction.  Setting of the concrete beams over TH 169 required night lane closures, and pier construction in the median of TH 169 required lane shifting and closures.

The Southwest LRT Regional Trail follows the former Chicago & Northwestern Railway right of way and is one of the most popular trail corridors that Three Rivers Park District operates and maintains.  Approximately 250,000 people use the trail each year and nearly 70,000 of these users cross TH 7, which is a major east-west transportation corridor.

After completing the feasibility study and construction documents, SRF performed the construction staking, construction observation, contract administration, and completed the necessary documentation for this TEA-21 funded project, which included:

• Design of a 10-foot by 12-foot box culvert
• Reconstruction of the trail approaches
• Construction of trail connections to TH 7 to allow users, emergency vehicles and maintenance personnel approaching the crossing to access the trail corridor
• Safety fencing and retaining walls

The project required close coordination during design and construction with MnDOT staff as TH 7 was under construction at the same time.