US Bridges

90 Road over E Branch Troublesome Cr.

FairPosted for load

Smith County, Kansas · 4.0S 1.5E of Thornburg · Structure no. 000920669403160

Built
1955
70 years old
Condition
Fair
inspected March 2023
Type
Girder and Floorbeam System
Steel
Length
40 ft
1 main span
Daily traffic
10
2020 count
Owner
County
County Highway Agency

About this bridge

90 Road over E Branch Troublesome Cr. is a steel girder and floorbeam system carrying 90 Road over E Branch Troublesome Cr. in Smith County, Kansas. It was built in 1955, so it is 70 years old, older 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 10 vehicles a day, projected to reach 10 by 2043. The structure is 40 ft (12.3 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries90 Road
CrossesE Branch Troublesome Cr.
Location4.0S 1.5E of Thornburg
RouteCounty Highway 0
CountySmith County
StateKansas
Coordinates39.88656, -98.75886
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating6.1 US tons
Inventory rating3.7 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length40 ft (12.3 m)
Longest span38 ft (11.6 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic10 (2020)
Projected traffic10 by 2043
Trucks0%
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 90 Road over E Branch Troublesome Cr. built?

It was built in 1955, making it 70 years old in 2025.

What condition is 90 Road over E Branch Troublesome Cr. 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 March 2023.

How much traffic does 90 Road over E Branch Troublesome Cr. carry?

About 10 vehicles per day (2020 count).

How long is 90 Road over E Branch Troublesome Cr.?

The structure is 40 ft (12.3 m) long with a longest span of 38 ft (11.6 m) and a deck 20 ft wide.

Who owns 90 Road over E Branch Troublesome Cr.?

It is owned by the County Highway Agency.