US Bridges

Local 120 Ave over Buffalo Creek Overflow

Fair

Delaware County, Iowa · 087062804 · Structure no. 000000000140281

Built
2003
22 years old
Condition
Fair
inspected February 2024
Type
Culvert
Steel
Length
30 ft
4 main spans
Daily traffic
44
2022 count
Owner
County
County Highway Agency

About this bridge

Local 120 Ave over Buffalo Creek Overflow is a steel culvert carrying Local 120 Ave over Buffalo Creek Overflow in Delaware County, Iowa. It was built in 2003, so it is 22 years old, younger 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 6 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 44 vehicles a day, projected to reach 44 by 2044. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLocal 120 Ave
CrossesBuffalo Creek Overflow
Location087062804
RouteCounty Highway 0
CountyDelaware County
StateIowa
Coordinates42.31169, -91.55863
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating22.5 US tons
Inventory rating17.5 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans4
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span5 ft (1.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic44 (2022)
Projected traffic44 by 2044
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Local 120 Ave over Buffalo Creek Overflow built?

It was built in 2003, making it 22 years old in 2025.

What condition is Local 120 Ave over Buffalo Creek Overflow 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 February 2024.

How much traffic does Local 120 Ave over Buffalo Creek Overflow carry?

About 44 vehicles per day (2022 count).

How long is Local 120 Ave over Buffalo Creek Overflow?

The structure is 30 ft (9.1 m) long with a longest span of 5 ft (1.5 m).

Who owns Local 120 Ave over Buffalo Creek Overflow?

It is owned by the County Highway Agency.