(March 24, 1932-1981)

WEST End: I-80 exit 106, Dallas County

Facing west on 90 (July 2002)

Photo by Jason Hancock

Jason and Neil both took pictures of this assembly before US 6 was added to the interstate here. To the left of the signs is a pole with a double-arrow sign for an old pre-interstate stub of IA 90 (see below). The pictures below are anachronistic for IA 90, but it is how the interchange looks since 2004.

Facing west on 90

The stop sign below "Interchange No. 106" is for the old 90 stub.

The good news: US 6 has been added to the signs here...

Same place as Jason's picture at top

...the bad news is the tags above the US 6 shields have a larger initial letter.

Facing southeast-ish

The bridge over the interchange changes the paved road's direction from north-south to east-west.

Facing west on 80

After the Earlham exit, the westbound mileage sign has the two county road shields...two Pottawattamie County shields. Their presence is a mystery.

 

Facing west on 80 / On the offramp

Right photo by Jason Hancock

This is the only interchange in Iowa with two signed county roads. No directions, though; "East F90 North P58" would make this a perfect sign. To the west, old US 6 (now F60) and P53 meet but the latter is not signed (see further below).

Facing east on 80

Surrounding area information: Old 90

The F90/P58 interchange is just north of where pre-interstate IA 90 was. The three pictures below are on the stub marked 360th Court.

Facing west

Photo by Neil Bratney

You can see the road matches up perfectly with I-80's eastbound lanes. This is not a coincidence. Construction of 80 took place right on top of 90 between what became the east end of IA 925 and this interchange. US 6 and 90 swapped routes a few times in the late 1950s/early 1960s during construction of the interstate.

Facing east

Photo by Neil Bratney

Neil writes, "Looking back up the hill of the stub, you can see that IA 90 was three lanes here, with a passing lane for the uphill eastbound traffic. There are several more three-lane segments between here and Booneville."

Facing west

Photo by Neil Bratney

The dead end is at a construction area. The BGSs on I-80 are for the Earlham exit, which was the north end of IA 232 before and after construction and until 1980.

Surrounding area information: Old 90 stub (the other end)

Facing east

Photo by Neil Bratney

This is six miles west of the west end of 90 in 1981. Between 1938 and 1958, before 90 was extended along US 6 (what is now F65 [old IA 925], G30, and IA 83 east of Atlantic), this was 90's west end. The interstate leaves the much older alignment to go on a new route here. In fact, the eastbound lanes of I-80 between here and the Earlham exit originally used pavement laid in 1955 as part of IA 90; the road had been gravel before then. According to paving records, those lanes had the oldest pavement used as part of an interstate in Iowa (the 1955 concrete was repaved in 1966). The interchange for former eastbound 6 (and southbound P53) is to the upper left.

Junction US 169

Facing west on 90

The camera's flash illuminates the age of this DOT-standard sign. Notes Jason, "What's puzzling about the [westbound sign] is that IA 90 hadn't gone anywhere near Atlantic since December of 1966." A similar but newer sign for Des Moines is on eastbound F90. Notice the "F90 ^ / 169 <->" in the background; the arrows were old enough a 90 shield could have been there. Those were replaced by mid-2005.

EAST End: I-35 exit 69, West Des Moines, Polk County

Facing east on 90

Photo by Jason Hancock

The center-lane-turn sign had moved by summer 2004. West Des Moines has reconfigured the road such that in order to continue west from I-35 on old 90, you have to make a left turn. Otherwise, you end up on a road that goes to a DMACC campus.

Facing east on 90

Photo by Jason Hancock

Between 1981 and 1989, after 90 was decommissioned, the easternmost 1.1 miles between the Dallas/Polk line and I-35 was secret IA 934. That designation would be applied to two more roads before the present 934 in 1998. The entire original route of IA 90 was east of this point, along Grand Avenue.

Facing east on 90

Facing south on 35

Photo by Jason Hancock

The Grand Avenue interchange is a cloverleaf, perhaps a bit surprising given its relative non-prominence. However, Grand Avenue does go directly to the State Capitol and downtown Des Moines, even though at this point it is far south of where it is through downtown. Original plans for Interstate 80 called for it to intersect I-35 just north of this interchange, following 90 for its entire length much closer than it does today. This vestige of Iowa's earliest interstate plans will be removed in the next decade with the six-laning of I-35 and conversion of this interchange to a five-ramp instead of a cloverleaf.

Facing north on 35

As with the west end, these pictures are also anachronistic. The new interchanges for IA 5 and the George Mills Civic Parkway have caused signs to change a lot since even 2000. The sign at right, I believe, was a temporary sign before the gantry was put up again, and has now been removed. The exit tabs are bigger, too, indicating they are of the past half-decade.

Facing north on 35

Facing west on Grand Avenue

Pictures by Jason Hancock: First, eighth, 15th, 16th, and 18th, 7/20/02

Pictures by me: Second-fourth and twelfth, 8/6/04; fifth and sixth, 6/4/07; seventh, 8/21/06; ninth, 8/11/03; 17th and 19th-21st, 8/19/04

Page created 1/31/02; last updated 2/14/10

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