US Bridges

Tontzville Road over Trib. to Big Bull Creek

Good

Miami County, Kansas · 1.5N 2.0W of Hillsdale · Structure no. 000000000610525

Built
1980
45 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
322 ft
5 main spans
Daily traffic
550
2011 count
Owner
County
County Highway Agency

About this bridge

Tontzville Road over Trib. to Big Bull Creek is a steel continuous stringer/multi-beam or girder carrying Tontzville Road over Trib. to Big Bull Creek in Miami County, Kansas. It was built in 1980, so it is 45 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 550 vehicles a day, roughly 10% of them trucks, projected to reach 580 by 2043. The structure is 322 ft (98.1 m) long and 34 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesTontzville Road
CrossesTrib. to Big Bull Creek
Location1.5N 2.0W of Hillsdale
RouteCounty Highway 1030
StateKansas
Coordinates38.68769, -94.89316
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 protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating31 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length322 ft (98.1 m)
Longest span71 ft (21.6 m)
Deck width34 ft (10.3 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic550 (2011)
Projected traffic580 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Tontzville Road over Trib. to Big Bull Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is Tontzville Road over Trib. to Big Bull Creek 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 July 2023.

How much traffic does Tontzville Road over Trib. to Big Bull Creek carry?

About 550 vehicles per day (2011 count), of which roughly 10% are trucks.

How long is Tontzville Road over Trib. to Big Bull Creek?

The structure is 322 ft (98.1 m) long with a longest span of 71 ft (21.6 m) and a deck 34 ft wide.

Who owns Tontzville Road over Trib. to Big Bull Creek?

It is owned by the County Highway Agency.