US Bridges

Reno Ave over Six Mile Creek

PoorPosted for load

Harrison County, Iowa · 079421204 · Structure no. 000000000178040

Built
1930
95 years old
Condition
Poor
inspected December 2022
Type
Truss - Thru
Steel
Length
114 ft
1 main span
Daily traffic
11
2022 count
Owner
County
County Highway Agency

About this bridge

Reno Ave over Six Mile Creek is a steel truss - thru carrying Reno Ave over Six Mile Creek in Harrison County, Iowa. It was built in 1930, so it is 95 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 3 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 11 vehicles a day, projected to reach 11 by 2043. The structure is 114 ft (34.7 m) long and 16 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesReno Ave
CrossesSix Mile Creek
Location079421204
RouteCounty Highway 0
StateIowa
Coordinates41.66362, -95.69353
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
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.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating11.8 US tons
Inventory rating6.9 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1 (+2 approach)
Design loadUnknown
Structure length114 ft (34.7 m)
Longest span50 ft (15.2 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11 (2022)
Projected traffic11 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 statusPossibly eligible for the National Register; requires further investigation
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Reno Ave over Six Mile Creek built?

It was built in 1930, making it 95 years old in 2025.

What condition is Reno Ave over Six Mile 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 December 2022.

How much traffic does Reno Ave over Six Mile Creek carry?

About 11 vehicles per day (2022 count).

How long is Reno Ave over Six Mile Creek?

The structure is 114 ft (34.7 m) long with a longest span of 50 ft (15.2 m) and a deck 16 ft wide.

Who owns Reno Ave over Six Mile Creek?

It is owned by the County Highway Agency.