US Bridges

Ia 330 SB over Mud Creek

Good

Jasper County, Iowa · 3.5 Mi. N of Jct. SR F17 · Structure no. 000000000608725

Built
2002
23 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
297 ft
3 main spans
Daily traffic
4,750
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 330 SB over Mud Creek is a prestressed concrete stringer/multi-beam or girder carrying Ia 330 SB over Mud Creek in Jasper County, Iowa. It was built in 2002, so it is 23 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,750 vehicles a day, roughly 12% of them trucks, projected to reach 4,750 by 2044. The structure is 297 ft (90.5 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIa 330 SB
CrossesMud Creek
Location3.5 Mi. N of Jct. SR F17
RouteState Highway 330
StateIowa
Coordinates41.85537, -93.24449
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.9 US tons
Inventory rating43.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length297 ft (90.5 m)
Longest span102 ft (31.1 m)
Deck width43 ft (13 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,750 (2022)
Projected traffic4,750 by 2044
Trucks12%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Ia 330 SB over Mud Creek built?

It was built in 2002, making it 23 years old in 2025.

What condition is Ia 330 SB 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 February 2024.

How much traffic does Ia 330 SB over Mud Creek carry?

About 4,750 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is Ia 330 SB over Mud Creek?

The structure is 297 ft (90.5 m) long with a longest span of 102 ft (31.1 m) and a deck 43 ft wide.

Who owns Ia 330 SB over Mud Creek?

It is owned by the State Highway Agency.