US Bridges

12th. St. Br. 3 over Rock Island Slough

Good

Sumner County, Kansas · 40 Ft W of Cri&p RR · Structure no. 529600960000344

Built
1993
32 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
35 ft
1 main span
Daily traffic
400
2003 count
Owner
City
City or Municipal Highway Agency

About this bridge

12th. St. Br. 3 over Rock Island Slough is a concrete culvert carrying 12th. St. Br. 3 over Rock Island Slough in Sumner County, Kansas. It was built in 1993, so it is 32 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 400 vehicles a day, roughly 2% of them trucks, projected to reach 480 by 2043. The structure is 35 ft (10.7 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries12th. St. Br. 3
CrossesRock Island Slough
Location40 Ft W of Cri&p RR
RouteCity Street 0
CountySumner County
StateKansas
Coordinates37.2716, -97.40278
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating93.9 US tons
Inventory rating56.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length35 ft (10.7 m)
Longest span33 ft (10 m)
Deck width44 ft (13.3 m)
Roadway width35 ft (10.6 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic400 (2003)
Projected traffic480 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 12th. St. Br. 3 over Rock Island Slough built?

It was built in 1993, making it 32 years old in 2025.

What condition is 12th. St. Br. 3 over Rock Island Slough 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 May 2023.

How much traffic does 12th. St. Br. 3 over Rock Island Slough carry?

About 400 vehicles per day (2003 count), of which roughly 2% are trucks.

How long is 12th. St. Br. 3 over Rock Island Slough?

The structure is 35 ft (10.7 m) long with a longest span of 33 ft (10 m) and a deck 44 ft wide.

Who owns 12th. St. Br. 3 over Rock Island Slough?

It is owned by the City or Municipal Highway Agency.