Interstate 10
Tippecanoe/Anderson Avenue Interchange

The Tippecanoe interchange SANBAG is in the early stages of preliminary engineering for the improvement of Tippecanoe Avenue interchange at Interstate 10 in San Bernardino and Loma Linda. A project study report was completed to make this project eligible for funding in the State Transportation Improvement Program.

The purpose of the current design study is not merely to provide improved operations and congestion relief at the interchange itself, but to improve local circulation with emphasis on enhanced access to Loma Linda University Medical Center, Loma Linda University, and the Jerry Pettis Veterans Administration Hospital.

Several design alternatives are currently under consideration. Construction alternatives include:

The addition of a new westbound loop on-ramp and a new westbound off-ramp, which tie directly into Laurelwood on the north side of Interstate 10. This alternative also would feature new eastbound hook-style on-ramps and off-ramps to a realigned Redlands Boulevard west of Anderson Avenue and a new north-south street running parallel to Anderson Avenue between Redlands Boulevard and Barton Road.
The addition of a new westbound loop on-ramp and a new westbound off-ramp, that tie directly into Laurelwood on the north side of Interstate 10, the same as the previous alternative. Further, this alternative would reconfigure the eastbound off-ramp at Tippecanoe Avenue to provide access to the new north-south street parallel to Anderson Avenue. A braided eastbound on-ramp from Waterman Avenue is also proposed.
The addition of an "offset diamond" interchange with all four ramps converging to one point north of Interstate 10. This alternative involves realignment of the freeway, a new bridge at Tippecanoe Avenue and additional bridges for ramps to cross under the freeway.

Continued development of this project will be based on the assumption that other local street improvements—including those that are yet to be funded—will be made. In March 2002, the SANBAG Board directed staff to work with the City of San Bernardino, City of Loma Linda and the County of San Bernardino to begin local planning and funding efforts for these street improvements.

SANBAG has contracted for an East Valley Traffic and Truck Study to determine traffic forecasts for the Tippecanoe/Anderson interchange and the impact that several east valley developments, such as the San Bernardino International Airport, will have on transportation during the next 20 years.

Study results show that several unfunded street improvements are pivotal to the successful reuse on the Inland Valley Development Agency area. These improvements are expected to make a dramatic impact on land use and transportation in the area and should be included in future design decisions, the study concluded. These unfunded improvements are as follows:

Completing the Mt. View Avenue connection from Interstate 10 to an easterly extension of Central Avenue via a bridge across the Santa Ana River
Reconstructing the Mt. View interchange with I-10 to address increased traffic
Extending Lena Road south from Mill Street to San Bernardino Avenue
Widening State Street from two lanes to four lanes between Highland Avenue and Cajon Boulevard

SANBAG is continuing to secure funding for the Tippecanoe/Anderson project. To date, $11.2 million has been secured for this project. Costs are estimated to be $35 million for the interchange and $25 million for related street improvements.

Interstate 10 Tippecanoe/Anderson Avenue Interchange

Interstate 10
Tippecanoe/Anderson Avenue Interchange