US Bridges

Iris Rd. over Frog Creek

Good

Coffey County, Kansas · I.0-25.1 · Structure no. 000160985005209

Built
1999
26 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
35
2013 count
Owner
County
County Highway Agency

About this bridge

Iris Rd. over Frog Creek is a steel stringer/multi-beam or girder carrying Iris Rd. over Frog Creek in Coffey County, Kansas. It was built in 1999, so it is 26 years old, younger than the Kansas average of 52.8 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 35 vehicles a day, roughly 5% of them trucks, projected to reach 40 by 2044. The structure is 40 ft (12.2 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesIris Rd.
CrossesFrog Creek
LocationI.0-25.1
RouteCounty Highway 0
StateKansas
Coordinates38.39189, -95.80253
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.9 US tons
Inventory rating34 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span39 ft (11.9 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic35 (2013)
Projected traffic40 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Iris Rd. over Frog Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is Iris Rd. over Frog Creek 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 April 2024.

How much traffic does Iris Rd. over Frog Creek carry?

About 35 vehicles per day (2013 count), of which roughly 5% are trucks.

How long is Iris Rd. over Frog Creek?

The structure is 40 ft (12.2 m) long with a longest span of 39 ft (11.9 m) and a deck 29 ft wide.

Who owns Iris Rd. over Frog Creek?

It is owned by the County Highway Agency.