US Bridges

Centennial Road over Drainage Channel

Good

Saline County, Kansas · 6.8 MI S/O I-70 · Structure no. 425400854803002

Built
1940
85 years old, rebuilt 2016
Condition
Good
inspected November 2023
Type
Culvert
Concrete
Length
23 ft
3 main spans
Daily traffic
1,450
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Centennial Road over Drainage Channel is a concrete culvert carrying Centennial Road over Drainage Channel in Saline County, Kansas. It was built in 1940 and reconstructed in 2016, so it is 85 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,450 vehicles a day, roughly 15% of them trucks, projected to reach 2,000 by 2043. The structure is 23 ft (6.9 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCentennial Road
CrossesDrainage Channel
Location6.8 MI S/O I-70
RouteCity Street 4803
CountySaline County
StateKansas
Coordinates38.77722, -97.6317
Functional classUrban Collector

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.
Culvert8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.8 US tons
Inventory rating33.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHL 93
Structure length23 ft (6.9 m)
Longest span7 ft (2.1 m)
Deck width32 ft (9.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic1,450 (2023)
Projected traffic2,000 by 2043
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Centennial Road over Drainage Channel built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 2016.

What condition is Centennial Road over Drainage Channel 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 November 2023.

How much traffic does Centennial Road over Drainage Channel carry?

About 1,450 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is Centennial Road over Drainage Channel?

The structure is 23 ft (6.9 m) long with a longest span of 7 ft (2.1 m) and a deck 32 ft wide.

Who owns Centennial Road over Drainage Channel?

It is owned by the City or Municipal Highway Agency.