US Bridges

188th Trl over Coal Creek

Good

Monroe County, Iowa · 072171803 · Structure no. 000000000252651

Built
2000
25 years old
Condition
Good
inspected December 2022
Type
Slab
Concrete Continuous
Length
128 ft
3 main spans
Daily traffic
45
2022 count
Owner
County
County Highway Agency

About this bridge

188th Trl over Coal Creek is a concrete continuous slab carrying 188th Trl over Coal Creek in Monroe County, Iowa. It was built in 2000, so it is 25 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 45 vehicles a day, projected to reach 45 by 2043. The structure is 128 ft (39 m) long and 33 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Carries188th Trl
CrossesCoal Creek
Location072171803
RouteCounty Highway 0
StateIowa
Coordinates41.03653, -92.86211
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 protection8 Very GoodNo problems noted.
Last inspectionDecember 2022
Inspection intervalevery 48 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating97.6 US tons
Inventory rating58.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length128 ft (39 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 traffic45 (2022)
Projected traffic45 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 188th Trl over Coal Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is 188th Trl over Coal 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 December 2022.

How much traffic does 188th Trl over Coal Creek carry?

About 45 vehicles per day (2022 count).

How long is 188th Trl over Coal Creek?

The structure is 128 ft (39 m) long with a longest span of 49 ft (14.9 m) and a deck 33 ft wide.

Who owns 188th Trl over Coal Creek?

It is owned by the County Highway Agency.