US Bridges

US36 HWY over K120 HWY

Good

Doniphan County, Kansas · JCT US36 & K120 · Structure no. 999903600220401

Built
1990
35 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
175 ft
3 main spans
Daily traffic
3,119
2023 count
Owner
State
State Highway Agency

About this bridge

US36 HWY over K120 HWY is a prestressed concrete continuous stringer/multi-beam or girder carrying US36 HWY over K120 HWY in Doniphan County, Kansas. It was built in 1990, so it is 35 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 3,119 vehicles a day, roughly 30% of them trucks, projected to reach 4,119 by 2044. The structure is 175 ft (53.4 m) long and 47 ft wide.

CarriesUS36 HWY
CrossesK120 HWY
LocationJCT US36 & K120
RouteU.S. Route 36
StateKansas
Coordinates39.83972, -95.265
Functional classRural Principal Arterial - Other

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.
Substructure8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating68.7 US tons
Inventory rating22.9 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length175 ft (53.4 m)
Longest span90 ft (27.4 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,119 (2023)
Projected traffic4,119 by 2044
Trucks30%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

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 US36 HWY over K120 HWY built?

It was built in 1990, making it 35 years old in 2025.

What condition is US36 HWY over K120 HWY 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 US36 HWY over K120 HWY carry?

About 3,119 vehicles per day (2023 count), of which roughly 30% are trucks.

How long is US36 HWY over K120 HWY?

The structure is 175 ft (53.4 m) long with a longest span of 90 ft (27.4 m) and a deck 47 ft wide.

Who owns US36 HWY over K120 HWY?

It is owned by the State Highway Agency.