US Bridges

IRR N3460 over Mud Creek

Good

Pawnee County, Oklahoma · 2W 3.6N of SH18/SH15 · Structure no. 315230000000000

Built
2019
6 years old
Condition
Good
inspected August 2023
Type
Culvert
Steel
Length
64 ft
1 main span
Daily traffic
20
2022 count
Owner
County
County Highway Agency

About this bridge

IRR N3460 over Mud Creek is a steel culvert carrying IRR N3460 over Mud Creek in Pawnee County, Oklahoma. It was built in 2019, so it is 6 years old, younger than the Oklahoma average of 47.8 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 20 vehicles a day, roughly 10% of them trucks, projected to reach 32 by 2042. The structure is 64 ft (19.5 m) long and 38 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesIRR N3460
CrossesMud Creek
Location2W 3.6N of SH18/SH15
RouteCounty Highway N3460
Coordinates36.45778, -96.83556
Functional classRural Local

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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length64 ft (19.5 m)
Longest span64 ft (19.5 m)
Deck width38 ft (11.6 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2022)
Projected traffic32 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 N3460 over Mud Creek built?

It was built in 2019, making it 6 years old in 2025.

What condition is IRR N3460 over Mud 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 August 2023.

How much traffic does IRR N3460 over Mud Creek carry?

About 20 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is IRR N3460 over Mud Creek?

The structure is 64 ft (19.5 m) long with a longest span of 64 ft (19.5 m) and a deck 38 ft wide.

Who owns IRR N3460 over Mud Creek?

It is owned by the County Highway Agency.