US Bridges

Local 120 Ave over Buffalo Creek

Good

Delaware County, Iowa · 087062804 · Structure no. 000000000140291

Built
2003
22 years old
Condition
Good
inspected February 2024
Type
Slab
Concrete Continuous
Length
220 ft
3 main spans
Daily traffic
44
2022 count
Owner
County
County Highway Agency

About this bridge

Local 120 Ave over Buffalo Creek is a concrete continuous slab carrying Local 120 Ave over Buffalo Creek 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 44 vehicles a day, projected to reach 44 by 2044. The structure is 220 ft (67.1 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLocal 120 Ave
CrossesBuffalo Creek
Location087062804
RouteCounty Highway 0
CountyDelaware County
StateIowa
Coordinates42.31418, -91.55863
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.9 US tons
Inventory rating49.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length220 ft (67.1 m)
Longest span49 ft (14.9 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.3 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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Local 120 Ave over Buffalo Creek built?

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

What condition is Local 120 Ave over Buffalo Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2024.

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

About 44 vehicles per day (2022 count).

How long is Local 120 Ave over Buffalo Creek?

The structure is 220 ft (67.1 m) long with a longest span of 49 ft (14.9 m) and a deck 33 ft wide.

Who owns Local 120 Ave over Buffalo Creek?

It is owned by the County Highway Agency.