US Bridges

280th Street over Middle Mill Creek

Fair

Page County, Iowa · 067370901 · Structure no. 000000000264406

Built
1988
37 years old
Condition
Fair
inspected November 2022
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
399
2022 count
Owner
County
County Highway Agency

About this bridge

280th Street over Middle Mill Creek is a concrete continuous culvert carrying 280th Street over Middle Mill Creek in Page County, Iowa. It was built in 1988, so it is 37 years old, younger than the Iowa average of 45.5 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 399 vehicles a day, roughly 11% of them trucks, projected to reach 399 by 2042. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Carries280th Street
CrossesMiddle Mill Creek
Location067370901
RouteCounty Highway 0
StateIowa
Coordinates40.63844, -95.10623
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic399 (2022)
Projected traffic399 by 2042
Trucks11%
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 280th Street over Middle Mill Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is 280th Street over Middle Mill 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 November 2022.

How much traffic does 280th Street over Middle Mill Creek carry?

About 399 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is 280th Street over Middle Mill Creek?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).

Who owns 280th Street over Middle Mill Creek?

It is owned by the County Highway Agency.