US Bridges

Quaker ST over I-35

Good

Warren County, Iowa · 1.8 Mi. N of Jct. SR G-64 · Structure no. 000000000051260

Built
1958
67 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
202 ft
4 main spans
Daily traffic
45
2022 count
Owner
State
State Highway Agency

About this bridge

Quaker ST over I-35 is a prestressed concrete stringer/multi-beam or girder carrying Quaker ST over I-35 in Warren County, Iowa. It was built in 1958, so it is 67 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 45 vehicles a day, projected to reach 45 by 2044. The structure is 202 ft (61.6 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesQuaker ST
CrossesI-35
Location1.8 Mi. N of Jct. SR G-64
RouteCounty Highway 0
StateIowa
Coordinates41.25326, -93.78118
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating49.7 US tons
Inventory rating17.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length202 ft (61.6 m)
Longest span56 ft (17.1 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2022)
Projected traffic45 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Quaker ST over I-35 built?

It was built in 1958, making it 67 years old in 2025.

What condition is Quaker ST over I-35 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.

How much traffic does Quaker ST over I-35 carry?

About 45 vehicles per day (2022 count).

How long is Quaker ST over I-35?

The structure is 202 ft (61.6 m) long with a longest span of 56 ft (17.1 m) and a deck 28 ft wide.

Who owns Quaker ST over I-35?

It is owned by the State Highway Agency.