US Bridges

Middle Road over Brush Creek

PoorPosted for load

Des Moines County, Iowa · Approx. 600 E. of Rd. H · Structure no. DAPAMCIOW005406

Built
1946
79 years old
Condition
Poor
inspected April 2024
Type
Tee Beam
Concrete
Length
36 ft
1 main span
Daily traffic
10
2014 count
Owner
Federal
Army

About this bridge

Middle Road over Brush Creek is a concrete tee beam carrying Middle Road over Brush Creek in Des Moines County, Iowa. It was built in 1946, so it is 79 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 4 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: posted for load restriction.

It carries about 10 vehicles a day, roughly 2% of them trucks, projected to reach 15 by 2046. The structure is 36 ft (11.1 m) long and 23 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesMiddle Road
CrossesBrush Creek
LocationApprox. 600 E. of Rd. H
StateIowa
Coordinates40.77587, -91.21658
Functional classRural Minor Collector

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be 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 alignment8: Equal to present desirable criteria
Operating rating24.8 US tons
Inventory rating19.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length36 ft (11.1 m)
Longest span34 ft (10.4 m)
Deck width23 ft (7 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2014)
Projected traffic15 by 2046
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerArmy
Maintained byArmy
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$2,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Middle Road over Brush Creek built?

It was built in 1946, making it 79 years old in 2025.

What condition is Middle Road over Brush 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 April 2024.

How much traffic does Middle Road over Brush Creek carry?

About 10 vehicles per day (2014 count), of which roughly 2% are trucks.

How long is Middle Road over Brush Creek?

The structure is 36 ft (11.1 m) long with a longest span of 34 ft (10.4 m) and a deck 23 ft wide.

Who owns Middle Road over Brush Creek?

It is owned by the Army.