US Bridges

Highland Drive over Unkown Stream

Good

Riley County, Kansas · Highland DR & Stone DR · Structure no. 511750810000011

Built
2006
19 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
500
2007 count
Owner
City
City or Municipal Highway Agency

About this bridge

Highland Drive over Unkown Stream is a concrete culvert carrying Highland Drive over Unkown Stream in Riley County, Kansas. It was built in 2006, so it is 19 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 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 500 vehicles a day, roughly 10% of them trucks, projected to reach 900 by 2042. The structure is 21 ft (6.5 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesHighland Drive
CrossesUnkown Stream
LocationHighland DR & Stone DR
RouteCity Street 0
CountyRiley County
StateKansas
Coordinates39.18483, -96.6383
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 inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating101 US tons
Inventory rating60.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.5 m)
Longest span9 ft (2.7 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic500 (2007)
Projected traffic900 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 Highland Drive over Unkown Stream built?

It was built in 2006, making it 19 years old in 2025.

What condition is Highland Drive over Unkown Stream 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 2024.

How much traffic does Highland Drive over Unkown Stream carry?

About 500 vehicles per day (2007 count), of which roughly 10% are trucks.

How long is Highland Drive over Unkown Stream?

The structure is 21 ft (6.5 m) long with a longest span of 9 ft (2.7 m) and a deck 30 ft wide.

Who owns Highland Drive over Unkown Stream?

It is owned by the City or Municipal Highway Agency.