US Bridges

Iowa RD 20.0-N.0 over Big Creek

Good

Allen County, Kansas · 4.5S of Moran · Structure no. 000011055005960

Built
1997
28 years old
Condition
Good
inspected June 2024
Type
Slab
Concrete Continuous
Length
123 ft
3 main spans
Daily traffic
30
2006 count
Owner
County
County Highway Agency

About this bridge

Iowa RD 20.0-N.0 over Big Creek is a concrete continuous slab carrying Iowa RD 20.0-N.0 over Big Creek in Allen County, Kansas. It was built in 1997, so it is 28 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 30 vehicles a day, projected to reach 35 by 2044. The structure is 123 ft (37.5 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesIowa RD 20.0-N.0
CrossesBig Creek
Location4.5S of Moran
RouteCounty Highway 110
CountyAllen County
StateKansas
Coordinates37.84896, -95.17149
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.5 US tons
Inventory rating40 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length123 ft (37.5 m)
Longest span48 ft (14.6 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic30 (2006)
Projected traffic35 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Iowa RD 20.0-N.0 over Big Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is Iowa RD 20.0-N.0 over Big Creek 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 June 2024.

How much traffic does Iowa RD 20.0-N.0 over Big Creek carry?

About 30 vehicles per day (2006 count).

How long is Iowa RD 20.0-N.0 over Big Creek?

The structure is 123 ft (37.5 m) long with a longest span of 48 ft (14.6 m) and a deck 26 ft wide.

Who owns Iowa RD 20.0-N.0 over Big Creek?

It is owned by the County Highway Agency.