US Bridges

US166 HWY over US75 HWY

Good

Montgomery County, Kansas · 2.13 MI E Chautauqua Coln · Structure no. 999916600630341

Built
1959
66 years old
Condition
Good
inspected March 2023
Type
Slab
Concrete Continuous
Length
148 ft
3 main spans
Daily traffic
2,473
2023 count
Owner
State
State Highway Agency

About this bridge

US166 HWY over US75 HWY is a concrete continuous slab carrying US166 HWY over US75 HWY in Montgomery County, Kansas. It was built in 1959, so it is 66 years old, older 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 2,473 vehicles a day, roughly 24% of them trucks, projected to reach 2,843 by 2044. The structure is 148 ft (45 m) long and 41 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesUS166 HWY
CrossesUS75 HWY
Location2.13 MI E Chautauqua Coln
RouteU.S. Route 166
CountyMontgomery County
StateKansas
Coordinates37.06694, -95.92611
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment2: Basically intolerable, requiring high priority of replacement
Operating rating64 US tons
Inventory rating38 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length148 ft (45 m)
Longest span59 ft (18 m)
Deck width41 ft (12.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,473 (2023)
Projected traffic2,843 by 2044
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
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 US166 HWY over US75 HWY built?

It was built in 1959, making it 66 years old in 2025.

What condition is US166 HWY over US75 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 March 2023.

How much traffic does US166 HWY over US75 HWY carry?

About 2,473 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is US166 HWY over US75 HWY?

The structure is 148 ft (45 m) long with a longest span of 59 ft (18 m) and a deck 41 ft wide.

Who owns US166 HWY over US75 HWY?

It is owned by the State Highway Agency.