US Bridges

CR173 over I10 SR8

Good

Holmes County, Florida · 0.6 Miles West of SR79 · Structure no. 520056

Built
1974
51 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
243 ft
4 main spans
Daily traffic
800
2022 count
Owner
State
State Highway Agency

About this bridge

CR173 over I10 SR8 is a prestressed concrete stringer/multi-beam or girder carrying CR173 over I10 SR8 in Holmes County, Florida. It was built in 1974, so it is 51 years old, older than the Florida average of 41.3 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 800 vehicles a day, roughly 12% of them trucks, projected to reach 1,388 by 2044. The structure is 243 ft (74.2 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCR173
CrossesI10 SR8
Location0.6 Miles West of SR79
RouteCounty Highway 173
StateFlorida
Coordinates30.76314, -85.696
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.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating40 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length243 ft (74.2 m)
Longest span89 ft (27.2 m)
Deck width32 ft (9.7 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2022)
Projected traffic1,388 by 2044
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was CR173 over I10 SR8 built?

It was built in 1974, making it 51 years old in 2025.

What condition is CR173 over I10 SR8 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 July 2023.

How much traffic does CR173 over I10 SR8 carry?

About 800 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is CR173 over I10 SR8?

The structure is 243 ft (74.2 m) long with a longest span of 89 ft (27.2 m) and a deck 32 ft wide.

Who owns CR173 over I10 SR8?

It is owned by the State Highway Agency.