US Bridges

Rs 1121 30.0-X.7 over Stream

Good

Lyon County, Kansas · 7.0S 1.0W of Hartford · Structure no. 000000000560530

Built
1977
48 years old
Condition
Good
inspected February 2023
Type
Slab
Concrete Continuous
Length
91 ft
3 main spans
Daily traffic
125
2007 count
Owner
County
County Highway Agency

About this bridge

Rs 1121 30.0-X.7 over Stream is a concrete continuous slab carrying Rs 1121 30.0-X.7 over Stream in Lyon County, Kansas. It was built in 1977, so it is 48 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 125 vehicles a day, roughly 10% of them trucks, projected to reach 140 by 2043. The structure is 91 ft (27.7 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesRs 1121 30.0-X.7
CrossesStream
Location7.0S 1.0W of Hartford
RouteCounty Highway 1121
CountyLyon County
StateKansas
Coordinates38.20022, -95.98025
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating23.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length91 ft (27.7 m)
Longest span36 ft (10.9 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic125 (2007)
Projected traffic140 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Rs 1121 30.0-X.7 over Stream built?

It was built in 1977, making it 48 years old in 2025.

What condition is Rs 1121 30.0-X.7 over Stream 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 February 2023.

How much traffic does Rs 1121 30.0-X.7 over Stream carry?

About 125 vehicles per day (2007 count), of which roughly 10% are trucks.

How long is Rs 1121 30.0-X.7 over Stream?

The structure is 91 ft (27.7 m) long with a longest span of 36 ft (10.9 m) and a deck 30 ft wide.

Who owns Rs 1121 30.0-X.7 over Stream?

It is owned by the County Highway Agency.