US Bridges

P30 90th Ave over Four Mile Creek

Good

Kossuth County, Iowa · 095292802 · Structure no. 000000000214841

Built
2024
1 years old
Condition
Good
inspected September 2024
Type
Slab
Concrete Continuous
Length
103 ft
3 main spans
Daily traffic
690
2023 count
Owner
County
County Highway Agency

About this bridge

P30 90th Ave over Four Mile Creek is a concrete continuous slab carrying P30 90th Ave over Four Mile Creek in Kossuth County, Iowa. It was built in 2024, so it is 1 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 690 vehicles a day, roughly 32% of them trucks, projected to reach 690 by 2044. The structure is 103 ft (31.4 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesP30 90th Ave
CrossesFour Mile Creek
Location095292802
RouteCounty Highway 0
StateIowa
Coordinates43.02287, -94.28664
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating44.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length103 ft (31.4 m)
Longest span39 ft (11.9 m)
Deck width33 ft (10.2 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic690 (2023)
Projected traffic690 by 2044
Trucks32%
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 P30 90th Ave over Four Mile Creek built?

It was built in 2024, making it 1 years old in 2025.

What condition is P30 90th Ave over Four Mile 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 September 2024.

How much traffic does P30 90th Ave over Four Mile Creek carry?

About 690 vehicles per day (2023 count), of which roughly 32% are trucks.

How long is P30 90th Ave over Four Mile Creek?

The structure is 103 ft (31.4 m) long with a longest span of 39 ft (11.9 m) and a deck 33 ft wide.

Who owns P30 90th Ave over Four Mile Creek?

It is owned by the County Highway Agency.