US Bridges

Local Road over Box Elder Creek

PoorClosed to traffic

Warren County, Iowa · 074251405 · Structure no. 000000000333390

Built
1940
85 years old, rebuilt 1977
Condition
Poor
inspected October 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
52 ft
3 main spans
Daily traffic
15
2022 count
Owner
County
County Highway Agency

About this bridge

Local Road over Box Elder Creek is a wood or timber stringer/multi-beam or girder carrying Local Road over Box Elder Creek in Warren County, Iowa. It was built in 1940 and reconstructed in 1977, so it is 85 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 0 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: closed to all traffic.

It carries about 15 vehicles a day, roughly 20% of them trucks, projected to reach 15 by 2043. The structure is 52 ft (15.9 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesLocal Road
CrossesBox Elder Creek
Location074251405
RouteCounty Highway 0
StateIowa
Coordinates41.20629, -93.70399
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck0 FailedOut of service and beyond corrective action.
Superstructure0 FailedOut of service and beyond corrective action.
Substructure0 FailedOut of service and beyond corrective action.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourFoundations stable; scour above top of footing
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating0 US tons
Inventory rating0 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadUnknown
Structure length52 ft (15.9 m)
Longest span20 ft (6.1 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2022)
Projected traffic15 by 2043
Trucks20%
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$792,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Local Road over Box Elder Creek built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1977.

What condition is Local Road over Box Elder Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2023.

How much traffic does Local Road over Box Elder Creek carry?

About 15 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is Local Road over Box Elder Creek?

The structure is 52 ft (15.9 m) long with a longest span of 20 ft (6.1 m) and a deck 24 ft wide.

Who owns Local Road over Box Elder Creek?

It is owned by the County Highway Agency.