US Bridges

LCL-250th ST over Miller Creek

Fair

Mills County, Iowa · 072420502 · Structure no. 000000000246061

Built
1978
47 years old, rebuilt 1982
Condition
Fair
inspected March 2023
Type
Slab
Wood or Timber
Length
73 ft
3 main spans
Daily traffic
45
2022 count
Owner
County
County Highway Agency

About this bridge

LCL-250th ST over Miller Creek is a wood or timber slab carrying LCL-250th ST over Miller Creek in Mills County, Iowa. It was built in 1978 and reconstructed in 1982, so it is 47 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.

It carries about 45 vehicles a day, projected to reach 45 by 2043. The structure is 73 ft (22.3 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLCL-250th ST
CrossesMiller Creek
Location072420502
RouteCounty Highway 0
CountyMills County
StateIowa
Coordinates41.0719, -95.70908
Functional classRural Local

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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.5 US tons
Inventory rating37.8 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadHS 20
Structure length73 ft (22.3 m)
Longest span32 ft (9.8 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2022)
Projected traffic45 by 2043
Trucks0%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LCL-250th ST over Miller Creek built?

It was built in 1978, making it 47 years old in 2025. It was reconstructed in 1982.

What condition is LCL-250th ST over Miller 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 March 2023.

How much traffic does LCL-250th ST over Miller Creek carry?

About 45 vehicles per day (2022 count).

How long is LCL-250th ST over Miller Creek?

The structure is 73 ft (22.3 m) long with a longest span of 32 ft (9.8 m) and a deck 32 ft wide.

Who owns LCL-250th ST over Miller Creek?

It is owned by the County Highway Agency.