US Bridges

FM 110th Ave over Robinson Creek

FairPosted for load

Delaware County, Iowa · 087060802 · Structure no. 000000000140090

Built
1967
58 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete Continuous
Length
101 ft
3 main spans
Daily traffic
216
2022 count
Owner
County
County Highway Agency

About this bridge

FM 110th Ave over Robinson Creek is a concrete continuous slab carrying FM 110th Ave over Robinson Creek in Delaware County, Iowa. It was built in 1967, so it is 58 years old, older 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 216 vehicles a day, roughly 19% of them trucks, projected to reach 216 by 2044. The structure is 101 ft (30.8 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesFM 110th Ave
CrossesRobinson Creek
Location087060802
RouteCounty Highway 0
CountyDelaware County
StateIowa
Coordinates42.36466, -91.57914
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating21.1 US tons
Inventory rating16.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length101 ft (30.8 m)
Longest span39 ft (11.9 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic216 (2022)
Projected traffic216 by 2044
Trucks19%
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

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$400,000 (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 110th Ave over Robinson Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is FM 110th Ave over Robinson Creek 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 October 2024.

How much traffic does FM 110th Ave over Robinson Creek carry?

About 216 vehicles per day (2022 count), of which roughly 19% are trucks.

How long is FM 110th Ave over Robinson Creek?

The structure is 101 ft (30.8 m) long with a longest span of 39 ft (11.9 m) and a deck 30 ft wide.

Who owns FM 110th Ave over Robinson Creek?

It is owned by the County Highway Agency.