US Bridges

FM Timber Ave over Hartgraves Creek

Good

Franklin County, Iowa · 092192802 · Structure no. 000000000157411

Built
2003
22 years old
Condition
Good
inspected May 2023
Type
Slab
Concrete Continuous
Length
223 ft
5 main spans
Daily traffic
403
2022 count
Owner
County
County Highway Agency

About this bridge

FM Timber Ave over Hartgraves Creek is a concrete continuous slab carrying FM Timber Ave over Hartgraves Creek in Franklin 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 403 vehicles a day, roughly 28% of them trucks, projected to reach 403 by 2043. The structure is 223 ft (68 m) long and 33 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesFM Timber Ave
CrossesHartgraves Creek
Location092192802
RouteCounty Highway 0
StateIowa
Coordinates42.74578, -93.10449
Functional classRural Major Collector

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87.6 US tons
Inventory rating52.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length223 ft (68 m)
Longest span49 ft (14.9 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic403 (2022)
Projected traffic403 by 2043
Trucks28%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM Timber Ave over Hartgraves Creek built?

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

What condition is FM Timber Ave over Hartgraves 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 May 2023.

How much traffic does FM Timber Ave over Hartgraves Creek carry?

About 403 vehicles per day (2022 count), of which roughly 28% are trucks.

How long is FM Timber Ave over Hartgraves Creek?

The structure is 223 ft (68 m) long with a longest span of 49 ft (14.9 m) and a deck 33 ft wide.

Who owns FM Timber Ave over Hartgraves Creek?

It is owned by the County Highway Agency.