US Bridges

City Street OS-108 over Neosho River

Fair

Morris County, Kansas · At Council Grove · Structure no. 506000640000001

Built
1983
42 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete Continuous
Length
226 ft
5 main spans
Daily traffic
140
2011 count
Owner
County
County Highway Agency

About this bridge

City Street OS-108 over Neosho River is a concrete continuous slab carrying City Street OS-108 over Neosho River in Morris County, Kansas. It was built in 1983, so it is 42 years old, younger than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 140 vehicles a day, roughly 10% of them trucks, projected to reach 160 by 2040. The structure is 226 ft (68.9 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCity Street OS-108
CrossesNeosho River
LocationAt Council Grove
RouteCity Street 0
StateKansas
Coordinates38.66683, -96.49424
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating70.4 US tons
Inventory rating42.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length226 ft (68.9 m)
Longest span50 ft (15.2 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic140 (2011)
Projected traffic160 by 2040
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

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 City Street OS-108 over Neosho River built?

It was built in 1983, making it 42 years old in 2025.

What condition is City Street OS-108 over Neosho River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.

How much traffic does City Street OS-108 over Neosho River carry?

About 140 vehicles per day (2011 count), of which roughly 10% are trucks.

How long is City Street OS-108 over Neosho River?

The structure is 226 ft (68.9 m) long with a longest span of 50 ft (15.2 m) and a deck 30 ft wide.

Who owns City Street OS-108 over Neosho River?

It is owned by the County Highway Agency.