Pottawattamie County Route G37 extends 2.28 miles east from the cloverleaf interchange joining the north end of I-680 with I-29. Following Old Mormon Bridge Road, the rural highway crosses a CN Railroad line, Union Pacific Railroad line and Pigeon Creek east to the city of Crescent. CR G37 concludes at CR L20 (Old Lincoln Highway), the historic alignment of U.S. 75.
CR G37 replaced what was Iowa 988 between I-29/680 and then-Iowa 183 (Old Lincoln Highway) in Crescent. The state route was decommissioned on July 1, 2003.1
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| CR G37 commences east along Old Mormon Bridge road beyond the loop ramp onto Interstate 29 north. 05/08/22 |
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| CR L19 (152nd Street) diverges south from Interstate 29 to connect with CR G37 ahead of the bridge spanning Pigeon Creek. 05/08/22 |
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| An implied overlap takes CR L19 east along CR G37 to Crescent. Old Mormon Bridge spans 152nd Street, Pigeon Creek and a Union Pacific Railroad. 05/08/22 |
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| Part of the Loess Hills, bluffs rise along the east side of Crescent. 05/08/22 |
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| CR L19 separates from Old Mormon Bridge Road along Joslin Avenue south 5.51 miles to the Council Bluffs city line. 05/08/22 |
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| An end sign for CR G37 precedes the T-intersection with Old Lincoln Highway in Crescent. CR L20 travels north to Loveland and south to Council Bluffs. 05/08/22 |
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| CR L19 (Joslin Avenue) north ties into CR G37 (Old Mormon Bridge Road) along the Crescent city line. 05/08/22 |
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| The southern leg of CR L19 from Crescent leads Joslin Avenue to a parallel alignment south along the P Railroad and Interstate 29. 05/08/22 |
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| Old Mormon Bridge Road elevates across both the Union Pacific Railroad line and Pigeon Creek. 05/08/22 |
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| The northern branch of CR L19 loops underneath the bridge across Pigeon Creek onto 152nd Street. CR L19 parallels I-29 north to CR G12 near Loveland. 05/08/22 |
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| CR G37 (Old Mormon Bridge Road) expands to four lanes with a grass median ahead of an at-grade crossing with the CN Railroad and I-29/680. The succeeding entrance ramp leads north onto I-29 toward Sioux City and I-880 east for Des Moines. 05/08/22 |
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| I-680 formerly overlapped with Interstate 29 north 9.5 miles from the cloverleaf interchange with Old Mormon Bridge Road. The concurrency was eliminated with sign changes made in November 2019 renumbering what was I-680 between Loveland and Minden as Interstate 880. 05/08/22 |
Page Updated 02-26-2024.
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