US Bridges

Local B-121 over Cross Creek

Poor

Jackson County, Kansas · 3.0W 1.9N of Delia · Structure no. 000430961004006

Built
1974
51 years old
Condition
Poor
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
102 ft
2 main spans
Daily traffic
35
2018 count
Owner
County
County Highway Agency

About this bridge

Local B-121 over Cross Creek is a steel continuous stringer/multi-beam or girder carrying Local B-121 over Cross Creek in Jackson 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 35 vehicles a day, projected to reach 35 by 2044. The structure is 102 ft (31.1 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLocal B-121
CrossesCross Creek
Location3.0W 1.9N of Delia
RouteCounty Highway 0
CountyJackson County
StateKansas
Coordinates39.26598, -96.01639
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating40.7 US tons
Inventory rating24 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length102 ft (31.1 m)
Longest span57 ft (17.4 m)
Deck width26 ft (8 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic35 (2018)
Projected traffic35 by 2044
Trucks0%
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 Local B-121 over Cross Creek built?

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

What condition is Local B-121 over Cross Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in January 2024.

How much traffic does Local B-121 over Cross Creek carry?

About 35 vehicles per day (2018 count).

How long is Local B-121 over Cross Creek?

The structure is 102 ft (31.1 m) long with a longest span of 57 ft (17.4 m) and a deck 26 ft wide.

Who owns Local B-121 over Cross Creek?

It is owned by the County Highway Agency.