US Bridges

255th Street over West Mill Creek

FairPosted for load

Page County, Iowa · 068372903 · Structure no. 000000000265690

Built
1957
68 years old
Condition
Fair
inspected November 2022
Type
Channel Beam
Concrete
Length
94 ft
3 main spans
Daily traffic
15
2022 count
Owner
County
County Highway Agency

About this bridge

255th Street over West Mill Creek is a concrete channel beam carrying 255th Street over West Mill Creek in Page County, Iowa. It was built in 1957, so it is 68 years old, older 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 15 vehicles a day, projected to reach 15 by 2042. The structure is 94 ft (28.7 m) long and 23 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries255th Street
CrossesWest Mill Creek
Location068372903
RouteCounty Highway 0
StateIowa
Coordinates40.67482, -95.11403
Functional classRural Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2022
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating39.2 US tons
Inventory rating23.5 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadH 15
Structure length94 ft (28.7 m)
Longest span31 ft (9.4 m)
Deck width23 ft (7 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2022)
Projected traffic15 by 2042
Trucks0%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 255th Street over West Mill Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is 255th Street over West 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 255th Street over West Mill Creek carry?

About 15 vehicles per day (2022 count).

How long is 255th Street over West Mill Creek?

The structure is 94 ft (28.7 m) long with a longest span of 31 ft (9.4 m) and a deck 23 ft wide.

Who owns 255th Street over West Mill Creek?

It is owned by the County Highway Agency.