US Bridges

K20 HWY over N Branch Independence CR

Fair

Doniphan County, Kansas · 7.30 M NE Brown Coln · Structure no. 999902000220361

Built
1985
40 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete Continuous
Length
102 ft
3 main spans
Daily traffic
248
2023 count
Owner
State
State Highway Agency

About this bridge

K20 HWY over N Branch Independence CR is a concrete continuous slab carrying K20 HWY over N Branch Independence CR in Doniphan County, Kansas. It was built in 1985, so it is 40 years old, younger than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 248 vehicles a day, roughly 18% of them trucks, projected to reach 253 by 2044. The structure is 102 ft (31.2 m) long and 30 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

Open in Google Maps
CarriesK20 HWY
CrossesN Branch Independence CR
Location7.30 M NE Brown Coln
RouteState Highway 20
CountyDoniphan County
StateKansas
Coordinates39.71778, -95.26472
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
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 geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating79.1 US tons
Inventory rating47 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length102 ft (31.2 m)
Longest span40 ft (12.2 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic248 (2023)
Projected traffic253 by 2044
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was K20 HWY over N Branch Independence CR built?

It was built in 1985, making it 40 years old in 2025.

What condition is K20 HWY over N Branch Independence CR in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.

How much traffic does K20 HWY over N Branch Independence CR carry?

About 248 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is K20 HWY over N Branch Independence CR?

The structure is 102 ft (31.2 m) long with a longest span of 40 ft (12.2 m) and a deck 30 ft wide.

Who owns K20 HWY over N Branch Independence CR?

It is owned by the State Highway Agency.