US Bridges

IRR N3400 Mehan RD over Sand Creek

Fair

Payne County, Oklahoma · Mehan & 140th St. .1S · Structure no. 332110000000000

Built
2021
4 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
58 ft
1 main span
Daily traffic
75
2022 count
Owner
County
County Highway Agency

About this bridge

IRR N3400 Mehan RD over Sand Creek is a steel stringer/multi-beam or girder carrying IRR N3400 Mehan RD over Sand Creek in Payne County, Oklahoma. It was built in 2021, so it is 4 years old, younger than the Oklahoma average of 47.8 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 75 vehicles a day, roughly 10% of them trucks, projected to reach 120 by 2042. The structure is 58 ft (17.7 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesIRR N3400 Mehan RD
CrossesSand Creek
LocationMehan & 140th St. .1S
RouteCounty Highway N3400
Coordinates35.95623, -96.94529
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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating30.6 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length58 ft (17.7 m)
Longest span58 ft (17.7 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2022)
Projected traffic120 by 2042
Trucks10%
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 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 IRR N3400 Mehan RD over Sand Creek built?

It was built in 2021, making it 4 years old in 2025.

What condition is IRR N3400 Mehan RD over Sand Creek 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 July 2023.

How much traffic does IRR N3400 Mehan RD over Sand Creek carry?

About 75 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is IRR N3400 Mehan RD over Sand Creek?

The structure is 58 ft (17.7 m) long with a longest span of 58 ft (17.7 m) and a deck 30 ft wide.

Who owns IRR N3400 Mehan RD over Sand Creek?

It is owned by the County Highway Agency.