US Bridges

Iron Stone_rs 1242 over Robidoux Creek

Good

Marshall County, Kansas · 0.5W of Beattie · Structure no. 000000000580750

Built
1974
51 years old
Condition
Good
inspected June 2023
Type
Slab
Concrete Continuous
Length
140 ft
3 main spans
Daily traffic
61
2007 count
Owner
County
County Highway Agency

About this bridge

Iron Stone_rs 1242 over Robidoux Creek is a concrete continuous slab carrying Iron Stone_rs 1242 over Robidoux Creek in Marshall County, Kansas. It was built in 1974, so it is 51 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 61 vehicles a day, projected to reach 61 by 2043. The structure is 140 ft (42.7 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesIron Stone_rs 1242
CrossesRobidoux Creek
Location0.5W of Beattie
RouteCounty Highway 1242
StateKansas
Coordinates39.86334, -96.42909
Functional classRural Major 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.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating39.4 US tons
Inventory rating23.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length140 ft (42.7 m)
Longest span56 ft (17 m)
Deck width30 ft (9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic61 (2007)
Projected traffic61 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Iron Stone_rs 1242 over Robidoux Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is Iron Stone_rs 1242 over Robidoux 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 June 2023.

How much traffic does Iron Stone_rs 1242 over Robidoux Creek carry?

About 61 vehicles per day (2007 count).

How long is Iron Stone_rs 1242 over Robidoux Creek?

The structure is 140 ft (42.7 m) long with a longest span of 56 ft (17 m) and a deck 30 ft wide.

Who owns Iron Stone_rs 1242 over Robidoux Creek?

It is owned by the County Highway Agency.